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Finding the Fourth Proportional to 57,601.70, 86,414.70 and 18,162.80

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Solution

The fourth proportional to 57,601.70, 86,414.70 and 18,162.80 is: 27,248.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,601.70 : 86,414.70 = 18,162.80 : x
  2. Step 2: Convert to fraction form
    57,601.70/86,414.70 = 18,162.80/x
  3. Step 3: Cross multiply
    57,601.70x = 86,414.70 × 18,162.80
  4. Step 4: Simplify right side
    57,601.70x = 1,569,532,913.16
  5. Step 5: Solve for x
    x = 1,569,532,913.16/57,601.70
  6. Step 6: Final answer
    x = 27,248.03

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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.