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Finding the Fourth Proportional to 26,482.64, 39,723.92 and 6,761.20

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Solution

The fourth proportional to 26,482.64, 39,723.92 and 6,761.20 is: 10,141.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,482.64 : 39,723.92 = 6,761.20 : x
  2. Step 2: Convert to fraction form
    26,482.64/39,723.92 = 6,761.20/x
  3. Step 3: Cross multiply
    26,482.64x = 39,723.92 × 6,761.20
  4. Step 4: Simplify right side
    26,482.64x = 268,581,367.90
  5. Step 5: Solve for x
    x = 268,581,367.90/26,482.64
  6. Step 6: Final answer
    x = 10,141.79

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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.