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Finding the Fourth Proportional to 60,659.60, 90,892.20 and 38,433.20

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Solution

The fourth proportional to 60,659.60, 90,892.20 and 38,433.20 is: 57,588.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,659.60 : 90,892.20 = 38,433.20 : x
  2. Step 2: Convert to fraction form
    60,659.60/90,892.20 = 38,433.20/x
  3. Step 3: Cross multiply
    60,659.60x = 90,892.20 × 38,433.20
  4. Step 4: Simplify right side
    60,659.60x = 3,493,278,101.04
  5. Step 5: Solve for x
    x = 3,493,278,101.04/60,659.60
  6. Step 6: Final answer
    x = 57,588.22

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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.