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Finding the Fourth Proportional to 47,702.59, 71,551.59 and 18,118.11

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Solution

The fourth proportional to 47,702.59, 71,551.59 and 18,118.11 is: 27,176.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,702.59 : 71,551.59 = 18,118.11 : x
  2. Step 2: Convert to fraction form
    47,702.59/71,551.59 = 18,118.11/x
  3. Step 3: Cross multiply
    47,702.59x = 71,551.59 × 18,118.11
  4. Step 4: Simplify right side
    47,702.59x = 1,296,379,778.67
  5. Step 5: Solve for x
    x = 1,296,379,778.67/47,702.59
  6. Step 6: Final answer
    x = 27,176.30

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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.