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Finding the Fourth Proportional to 8,486.02, 11,706.87 and 5,502.61

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Solution

The fourth proportional to 8,486.02, 11,706.87 and 5,502.61 is: 7,591.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,486.02 : 11,706.87 = 5,502.61 : x
  2. Step 2: Convert to fraction form
    8,486.02/11,706.87 = 5,502.61/x
  3. Step 3: Cross multiply
    8,486.02x = 11,706.87 × 5,502.61
  4. Step 4: Simplify right side
    8,486.02x = 64,418,339.93
  5. Step 5: Solve for x
    x = 64,418,339.93/8,486.02
  6. Step 6: Final answer
    x = 7,591.11

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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.