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Finding the Fourth Proportional to 8,842.88, 12,203.18 and 5,116.88

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Solution

The fourth proportional to 8,842.88, 12,203.18 and 5,116.88 is: 7,061.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,842.88 : 12,203.18 = 5,116.88 : x
  2. Step 2: Convert to fraction form
    8,842.88/12,203.18 = 5,116.88/x
  3. Step 3: Cross multiply
    8,842.88x = 12,203.18 × 5,116.88
  4. Step 4: Simplify right side
    8,842.88x = 62,442,121.08
  5. Step 5: Solve for x
    x = 62,442,121.08/8,842.88
  6. Step 6: Final answer
    x = 7,061.29

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1.5x scale

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.