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Finding the Fourth Proportional to 26,874, 40,306.68 and 19,059.12

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Solution

The fourth proportional to 26,874, 40,306.68 and 19,059.12 is: 28,585.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,874 : 40,306.68 = 19,059.12 : x
  2. Step 2: Convert to fraction form
    26,874/40,306.68 = 19,059.12/x
  3. Step 3: Cross multiply
    26,874x = 40,306.68 × 19,059.12
  4. Step 4: Simplify right side
    26,874x = 768,209,850.92
  5. Step 5: Solve for x
    x = 768,209,850.92/26,874
  6. Step 6: Final answer
    x = 28,585.62

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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.