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Finding the Fourth Proportional to 83,744.64, 115,560.90 and 47,926.44

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Solution

The fourth proportional to 83,744.64, 115,560.90 and 47,926.44 is: 66,134.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,744.64 : 115,560.90 = 47,926.44 : x
  2. Step 2: Convert to fraction form
    83,744.64/115,560.90 = 47,926.44/x
  3. Step 3: Cross multiply
    83,744.64x = 115,560.90 × 47,926.44
  4. Step 4: Simplify right side
    83,744.64x = 5,538,422,540.20
  5. Step 5: Solve for x
    x = 5,538,422,540.20/83,744.64
  6. Step 6: Final answer
    x = 66,134.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.