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Finding the Fourth Proportional to 8,599.52, 11,869.79 and 5,064.78

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Solution

The fourth proportional to 8,599.52, 11,869.79 and 5,064.78 is: 6,990.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,599.52 : 11,869.79 = 5,064.78 : x
  2. Step 2: Convert to fraction form
    8,599.52/11,869.79 = 5,064.78/x
  3. Step 3: Cross multiply
    8,599.52x = 11,869.79 × 5,064.78
  4. Step 4: Simplify right side
    8,599.52x = 60,117,887.66
  5. Step 5: Solve for x
    x = 60,117,887.66/8,599.52
  6. Step 6: Final answer
    x = 6,990.85

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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.