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Finding the Fourth Proportional to 57,697.20, 86,545.80 and 36,064.80

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Solution

The fourth proportional to 57,697.20, 86,545.80 and 36,064.80 is: 54,097.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,697.20 : 86,545.80 = 36,064.80 : x
  2. Step 2: Convert to fraction form
    57,697.20/86,545.80 = 36,064.80/x
  3. Step 3: Cross multiply
    57,697.20x = 86,545.80 × 36,064.80
  4. Step 4: Simplify right side
    57,697.20x = 3,121,256,967.84
  5. Step 5: Solve for x
    x = 3,121,256,967.84/57,697.20
  6. Step 6: Final answer
    x = 54,097.20

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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.