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Finding the Fourth Proportional to 61,648.74, 85,073.76 and 34,792.38

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Solution

The fourth proportional to 61,648.74, 85,073.76 and 34,792.38 is: 48,012.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,648.74 : 85,073.76 = 34,792.38 : x
  2. Step 2: Convert to fraction form
    61,648.74/85,073.76 = 34,792.38/x
  3. Step 3: Cross multiply
    61,648.74x = 85,073.76 × 34,792.38
  4. Step 4: Simplify right side
    61,648.74x = 2,959,918,585.95
  5. Step 5: Solve for x
    x = 2,959,918,585.95/61,648.74
  6. Step 6: Final answer
    x = 48,012.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.