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Finding the Fourth Proportional to 57,487.77, 86,188.68 and 39,667.59

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Solution

The fourth proportional to 57,487.77, 86,188.68 and 39,667.59 is: 59,471.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,487.77 : 86,188.68 = 39,667.59 : x
  2. Step 2: Convert to fraction form
    57,487.77/86,188.68 = 39,667.59/x
  3. Step 3: Cross multiply
    57,487.77x = 86,188.68 × 39,667.59
  4. Step 4: Simplify right side
    57,487.77x = 3,418,897,220.88
  5. Step 5: Solve for x
    x = 3,418,897,220.88/57,487.77
  6. Step 6: Final answer
    x = 59,471.73

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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.