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Finding the Fourth Proportional to 11,196.98, 15,449.86 and 6,351.47

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Solution

The fourth proportional to 11,196.98, 15,449.86 and 6,351.47 is: 8,763.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,196.98 : 15,449.86 = 6,351.47 : x
  2. Step 2: Convert to fraction form
    11,196.98/15,449.86 = 6,351.47/x
  3. Step 3: Cross multiply
    11,196.98x = 15,449.86 × 6,351.47
  4. Step 4: Simplify right side
    11,196.98x = 98,129,229.17
  5. Step 5: Solve for x
    x = 98,129,229.17/11,196.98
  6. Step 6: Final answer
    x = 8,763.90

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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.