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Finding the Fourth Proportional to 66,725.70, 92,114.76 and 38,425.92

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Solution

The fourth proportional to 66,725.70, 92,114.76 and 38,425.92 is: 53,046.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,725.70 : 92,114.76 = 38,425.92 : x
  2. Step 2: Convert to fraction form
    66,725.70/92,114.76 = 38,425.92/x
  3. Step 3: Cross multiply
    66,725.70x = 92,114.76 × 38,425.92
  4. Step 4: Simplify right side
    66,725.70x = 3,539,594,398.58
  5. Step 5: Solve for x
    x = 3,539,594,398.58/66,725.70
  6. Step 6: Final answer
    x = 53,046.94

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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.