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Finding the Fourth Proportional to 8,876.70, 12,250.44 and 5,101.11

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Solution

The fourth proportional to 8,876.70, 12,250.44 and 5,101.11 is: 7,039.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,876.70 : 12,250.44 = 5,101.11 : x
  2. Step 2: Convert to fraction form
    8,876.70/12,250.44 = 5,101.11/x
  3. Step 3: Cross multiply
    8,876.70x = 12,250.44 × 5,101.11
  4. Step 4: Simplify right side
    8,876.70x = 62,490,841.99
  5. Step 5: Solve for x
    x = 62,490,841.99/8,876.70
  6. Step 6: Final answer
    x = 7,039.87

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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.