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Finding the Fourth Proportional to 26,679.53, 40,019.29 and 6,958.03

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Solution

The fourth proportional to 26,679.53, 40,019.29 and 6,958.03 is: 10,437.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,679.53 : 40,019.29 = 6,958.03 : x
  2. Step 2: Convert to fraction form
    26,679.53/40,019.29 = 6,958.03/x
  3. Step 3: Cross multiply
    26,679.53x = 40,019.29 × 6,958.03
  4. Step 4: Simplify right side
    26,679.53x = 278,455,385.61
  5. Step 5: Solve for x
    x = 278,455,385.61/26,679.53
  6. Step 6: Final answer
    x = 10,437.04

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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.