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Finding the Fourth Proportional to 57,412.47, 86,129.03 and 23,659.70

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Solution

The fourth proportional to 57,412.47, 86,129.03 and 23,659.70 is: 35,493.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,412.47 : 86,129.03 = 23,659.70 : x
  2. Step 2: Convert to fraction form
    57,412.47/86,129.03 = 23,659.70/x
  3. Step 3: Cross multiply
    57,412.47x = 86,129.03 × 23,659.70
  4. Step 4: Simplify right side
    57,412.47x = 2,037,786,672.87
  5. Step 5: Solve for x
    x = 2,037,786,672.87/57,412.47
  6. Step 6: Final answer
    x = 35,493.80

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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.