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Finding the Fourth Proportional to 61,375.66, 91,865.48 and 31,752.70

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Solution

The fourth proportional to 61,375.66, 91,865.48 and 31,752.70 is: 47,526.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,375.66 : 91,865.48 = 31,752.70 : x
  2. Step 2: Convert to fraction form
    61,375.66/91,865.48 = 31,752.70/x
  3. Step 3: Cross multiply
    61,375.66x = 91,865.48 × 31,752.70
  4. Step 4: Simplify right side
    61,375.66x = 2,916,976,567.47
  5. Step 5: Solve for x
    x = 2,916,976,567.47/61,375.66
  6. Step 6: Final answer
    x = 47,526.61

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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.