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Finding the Fourth Proportional to 8,061.85, 11,995.23 and 7,860.97

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Solution

The fourth proportional to 8,061.85, 11,995.23 and 7,860.97 is: 11,696.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,061.85 : 11,995.23 = 7,860.97 : x
  2. Step 2: Convert to fraction form
    8,061.85/11,995.23 = 7,860.97/x
  3. Step 3: Cross multiply
    8,061.85x = 11,995.23 × 7,860.97
  4. Step 4: Simplify right side
    8,061.85x = 94,294,143.17
  5. Step 5: Solve for x
    x = 94,294,143.17/8,061.85
  6. Step 6: Final answer
    x = 11,696.34

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Find fourth proportional to 4,030.93, 5,997.62 and 3,930.49
Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.