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Finding the Fourth Proportional to 47,180.73, 70,775.55 and 15,591

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Solution

The fourth proportional to 47,180.73, 70,775.55 and 15,591 is: 23,387.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,180.73 : 70,775.55 = 15,591 : x
  2. Step 2: Convert to fraction form
    47,180.73/70,775.55 = 15,591/x
  3. Step 3: Cross multiply
    47,180.73x = 70,775.55 × 15,591
  4. Step 4: Simplify right side
    47,180.73x = 1,103,461,600.05
  5. Step 5: Solve for x
    x = 1,103,461,600.05/47,180.73
  6. Step 6: Final answer
    x = 23,387.97

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1.5x scale

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.