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Finding the Fourth Proportional to 61,587.80, 92,373.71 and 19,472.12

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Solution

The fourth proportional to 61,587.80, 92,373.71 and 19,472.12 is: 29,205.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,587.80 : 92,373.71 = 19,472.12 : x
  2. Step 2: Convert to fraction form
    61,587.80/92,373.71 = 19,472.12/x
  3. Step 3: Cross multiply
    61,587.80x = 92,373.71 × 19,472.12
  4. Step 4: Simplify right side
    61,587.80x = 1,798,711,406.74
  5. Step 5: Solve for x
    x = 1,798,711,406.74/61,587.80
  6. Step 6: Final answer
    x = 29,205.65

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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.