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Finding the Fourth Proportional to 15,640.12, 23,466.66 and 8,713

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Solution

The fourth proportional to 15,640.12, 23,466.66 and 8,713 is: 13,073.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,640.12 : 23,466.66 = 8,713 : x
  2. Step 2: Convert to fraction form
    15,640.12/23,466.66 = 8,713/x
  3. Step 3: Cross multiply
    15,640.12x = 23,466.66 × 8,713
  4. Step 4: Simplify right side
    15,640.12x = 204,465,008.58
  5. Step 5: Solve for x
    x = 204,465,008.58/15,640.12
  6. Step 6: Final answer
    x = 13,073.11

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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.