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Finding the Fourth Proportional to 60,387.68, 90,561.04 and 22,938.72

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Solution

The fourth proportional to 60,387.68, 90,561.04 and 22,938.72 is: 34,400.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,387.68 : 90,561.04 = 22,938.72 : x
  2. Step 2: Convert to fraction form
    60,387.68/90,561.04 = 22,938.72/x
  3. Step 3: Cross multiply
    60,387.68x = 90,561.04 × 22,938.72
  4. Step 4: Simplify right side
    60,387.68x = 2,077,354,339.47
  5. Step 5: Solve for x
    x = 2,077,354,339.47/60,387.68
  6. Step 6: Final answer
    x = 34,400.30

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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.