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Finding the Fourth Proportional to 52,725.97, 79,455.75 and 47,729.86

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Solution

The fourth proportional to 52,725.97, 79,455.75 and 47,729.86 is: 71,926.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,725.97 : 79,455.75 = 47,729.86 : x
  2. Step 2: Convert to fraction form
    52,725.97/79,455.75 = 47,729.86/x
  3. Step 3: Cross multiply
    52,725.97x = 79,455.75 × 47,729.86
  4. Step 4: Simplify right side
    52,725.97x = 3,792,411,823.70
  5. Step 5: Solve for x
    x = 3,792,411,823.70/52,725.97
  6. Step 6: Final answer
    x = 71,926.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.