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Finding the Fourth Proportional to 8,470.57, 12,705.24 and 2,627.03

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Solution

The fourth proportional to 8,470.57, 12,705.24 and 2,627.03 is: 3,940.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,470.57 : 12,705.24 = 2,627.03 : x
  2. Step 2: Convert to fraction form
    8,470.57/12,705.24 = 2,627.03/x
  3. Step 3: Cross multiply
    8,470.57x = 12,705.24 × 2,627.03
  4. Step 4: Simplify right side
    8,470.57x = 33,377,016.78
  5. Step 5: Solve for x
    x = 33,377,016.78/8,470.57
  6. Step 6: Final answer
    x = 3,940.35

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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.