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Finding the Fourth Proportional to 86,500.60, 129,750.90 and 24,171.10

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Solution

The fourth proportional to 86,500.60, 129,750.90 and 24,171.10 is: 36,256.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,500.60 : 129,750.90 = 24,171.10 : x
  2. Step 2: Convert to fraction form
    86,500.60/129,750.90 = 24,171.10/x
  3. Step 3: Cross multiply
    86,500.60x = 129,750.90 × 24,171.10
  4. Step 4: Simplify right side
    86,500.60x = 3,136,221,978.99
  5. Step 5: Solve for x
    x = 3,136,221,978.99/86,500.60
  6. Step 6: Final answer
    x = 36,256.65

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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.