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Finding the Fourth Proportional to 71,616.78, 107,425.14 and 22,368.78

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Solution

The fourth proportional to 71,616.78, 107,425.14 and 22,368.78 is: 33,553.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,616.78 : 107,425.14 = 22,368.78 : x
  2. Step 2: Convert to fraction form
    71,616.78/107,425.14 = 22,368.78/x
  3. Step 3: Cross multiply
    71,616.78x = 107,425.14 × 22,368.78
  4. Step 4: Simplify right side
    71,616.78x = 2,402,969,323.13
  5. Step 5: Solve for x
    x = 2,402,969,323.13/71,616.78
  6. Step 6: Final answer
    x = 33,553.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.