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Finding the Fourth Proportional to 57,649.76, 86,471.52 and 17,668.70

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Solution

The fourth proportional to 57,649.76, 86,471.52 and 17,668.70 is: 26,502.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,649.76 : 86,471.52 = 17,668.70 : x
  2. Step 2: Convert to fraction form
    57,649.76/86,471.52 = 17,668.70/x
  3. Step 3: Cross multiply
    57,649.76x = 86,471.52 × 17,668.70
  4. Step 4: Simplify right side
    57,649.76x = 1,527,839,345.42
  5. Step 5: Solve for x
    x = 1,527,839,345.42/57,649.76
  6. Step 6: Final answer
    x = 26,502.09

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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.