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Finding the Fourth Proportional to 57,700.72, 86,551.80 and 22,164.40

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Solution

The fourth proportional to 57,700.72, 86,551.80 and 22,164.40 is: 33,246.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,700.72 : 86,551.80 = 22,164.40 : x
  2. Step 2: Convert to fraction form
    57,700.72/86,551.80 = 22,164.40/x
  3. Step 3: Cross multiply
    57,700.72x = 86,551.80 × 22,164.40
  4. Step 4: Simplify right side
    57,700.72x = 1,918,368,715.92
  5. Step 5: Solve for x
    x = 1,918,368,715.92/57,700.72
  6. Step 6: Final answer
    x = 33,246.88

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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.