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Finding the Fourth Proportional to 29,387.60, 44,086.20 and 9,660.80

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Solution

The fourth proportional to 29,387.60, 44,086.20 and 9,660.80 is: 14,492.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,387.60 : 44,086.20 = 9,660.80 : x
  2. Step 2: Convert to fraction form
    29,387.60/44,086.20 = 9,660.80/x
  3. Step 3: Cross multiply
    29,387.60x = 44,086.20 × 9,660.80
  4. Step 4: Simplify right side
    29,387.60x = 425,907,960.96
  5. Step 5: Solve for x
    x = 425,907,960.96/29,387.60
  6. Step 6: Final answer
    x = 14,492.78

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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.