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Finding the Fourth Proportional to 57,677.79, 86,516.16 and 18,234.92

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Solution

The fourth proportional to 57,677.79, 86,516.16 and 18,234.92 is: 27,352.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,677.79 : 86,516.16 = 18,234.92 : x
  2. Step 2: Convert to fraction form
    57,677.79/86,516.16 = 18,234.92/x
  3. Step 3: Cross multiply
    57,677.79x = 86,516.16 × 18,234.92
  4. Step 4: Simplify right side
    57,677.79x = 1,577,614,823.73
  5. Step 5: Solve for x
    x = 1,577,614,823.73/57,677.79
  6. Step 6: Final answer
    x = 27,352.21

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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.