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Finding the Fourth Proportional to 61,934.56, 92,810.96 and 38,489.92

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Solution

The fourth proportional to 61,934.56, 92,810.96 and 38,489.92 is: 57,678.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,934.56 : 92,810.96 = 38,489.92 : x
  2. Step 2: Convert to fraction form
    61,934.56/92,810.96 = 38,489.92/x
  3. Step 3: Cross multiply
    61,934.56x = 92,810.96 × 38,489.92
  4. Step 4: Simplify right side
    61,934.56x = 3,572,286,425.52
  5. Step 5: Solve for x
    x = 3,572,286,425.52/61,934.56
  6. Step 6: Final answer
    x = 57,678.40

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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.