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Finding the Fourth Proportional to 43,678.60, 65,517.90 and 27,932.20

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Solution

The fourth proportional to 43,678.60, 65,517.90 and 27,932.20 is: 41,898.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,678.60 : 65,517.90 = 27,932.20 : x
  2. Step 2: Convert to fraction form
    43,678.60/65,517.90 = 27,932.20/x
  3. Step 3: Cross multiply
    43,678.60x = 65,517.90 × 27,932.20
  4. Step 4: Simplify right side
    43,678.60x = 1,830,059,086.38
  5. Step 5: Solve for x
    x = 1,830,059,086.38/43,678.60
  6. Step 6: Final answer
    x = 41,898.30

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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.