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Finding the Fourth Proportional to 68,862.74, 95,022.78 and 38,641.82

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Solution

The fourth proportional to 68,862.74, 95,022.78 and 38,641.82 is: 53,321.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,862.74 : 95,022.78 = 38,641.82 : x
  2. Step 2: Convert to fraction form
    68,862.74/95,022.78 = 38,641.82/x
  3. Step 3: Cross multiply
    68,862.74x = 95,022.78 × 38,641.82
  4. Step 4: Simplify right side
    68,862.74x = 3,671,853,160.66
  5. Step 5: Solve for x
    x = 3,671,853,160.66/68,862.74
  6. Step 6: Final answer
    x = 53,321.33

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1.5x scale

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.