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Finding the Fourth Proportional to 12,804.75, 17,664.75 and 7,497.23

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Solution

The fourth proportional to 12,804.75, 17,664.75 and 7,497.23 is: 10,342.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,804.75 : 17,664.75 = 7,497.23 : x
  2. Step 2: Convert to fraction form
    12,804.75/17,664.75 = 7,497.23/x
  3. Step 3: Cross multiply
    12,804.75x = 17,664.75 × 7,497.23
  4. Step 4: Simplify right side
    12,804.75x = 132,436,605.32
  5. Step 5: Solve for x
    x = 132,436,605.32/12,804.75
  6. Step 6: Final answer
    x = 10,342.77

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Find fourth proportional to 6,402.38, 8,832.38 and 3,748.61
Half scale
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Double scale
Find fourth proportional to 12,805.75, 17,666.13 and 7,498.23
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.