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Finding the Fourth Proportional to 8,058.80, 12,079.80 and 3,892.52

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Solution

The fourth proportional to 8,058.80, 12,079.80 and 3,892.52 is: 5,834.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,058.80 : 12,079.80 = 3,892.52 : x
  2. Step 2: Convert to fraction form
    8,058.80/12,079.80 = 3,892.52/x
  3. Step 3: Cross multiply
    8,058.80x = 12,079.80 × 3,892.52
  4. Step 4: Simplify right side
    8,058.80x = 47,020,863.10
  5. Step 5: Solve for x
    x = 47,020,863.10/8,058.80
  6. Step 6: Final answer
    x = 5,834.72

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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.