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Finding the Fourth Proportional to 61,560.86, 92,329.76 and 38,330.78

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Solution

The fourth proportional to 61,560.86, 92,329.76 and 38,330.78 is: 57,488.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,560.86 : 92,329.76 = 38,330.78 : x
  2. Step 2: Convert to fraction form
    61,560.86/92,329.76 = 38,330.78/x
  3. Step 3: Cross multiply
    61,560.86x = 92,329.76 × 38,330.78
  4. Step 4: Simplify right side
    61,560.86x = 3,539,071,718.01
  5. Step 5: Solve for x
    x = 3,539,071,718.01/61,560.86
  6. Step 6: Final answer
    x = 57,488.99

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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.