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Finding the Fourth Proportional to 61,752, 92,479.99 and 31,687.12

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Solution

The fourth proportional to 61,752, 92,479.99 and 31,687.12 is: 47,454.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,752 : 92,479.99 = 31,687.12 : x
  2. Step 2: Convert to fraction form
    61,752/92,479.99 = 31,687.12/x
  3. Step 3: Cross multiply
    61,752x = 92,479.99 × 31,687.12
  4. Step 4: Simplify right side
    61,752x = 2,930,424,540.73
  5. Step 5: Solve for x
    x = 2,930,424,540.73/61,752
  6. Step 6: Final answer
    x = 47,454.73

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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.