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Finding the Fourth Proportional to 57,664.70, 86,545.65 and 26,123.30

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Solution

The fourth proportional to 57,664.70, 86,545.65 and 26,123.30 is: 39,206.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,664.70 : 86,545.65 = 26,123.30 : x
  2. Step 2: Convert to fraction form
    57,664.70/86,545.65 = 26,123.30/x
  3. Step 3: Cross multiply
    57,664.70x = 86,545.65 × 26,123.30
  4. Step 4: Simplify right side
    57,664.70x = 2,260,857,978.65
  5. Step 5: Solve for x
    x = 2,260,857,978.65/57,664.70
  6. Step 6: Final answer
    x = 39,206.97

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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.