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Finding the Fourth Proportional to 12,193.66, 16,825.18 and 7,412.78

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Solution

The fourth proportional to 12,193.66, 16,825.18 and 7,412.78 is: 10,228.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,193.66 : 16,825.18 = 7,412.78 : x
  2. Step 2: Convert to fraction form
    12,193.66/16,825.18 = 7,412.78/x
  3. Step 3: Cross multiply
    12,193.66x = 16,825.18 × 7,412.78
  4. Step 4: Simplify right side
    12,193.66x = 124,721,357.80
  5. Step 5: Solve for x
    x = 124,721,357.80/12,193.66
  6. Step 6: Final answer
    x = 10,228.38

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Find fourth proportional to 6,096.83, 8,412.59 and 3,706.39
Half scale
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Double scale
Find fourth proportional to 12,194.66, 16,826.56 and 7,413.78
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.