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Finding the Fourth Proportional to 48,751.47, 73,126.86 and 13,691.16

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Solution

The fourth proportional to 48,751.47, 73,126.86 and 13,691.16 is: 20,536.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,751.47 : 73,126.86 = 13,691.16 : x
  2. Step 2: Convert to fraction form
    48,751.47/73,126.86 = 13,691.16/x
  3. Step 3: Cross multiply
    48,751.47x = 73,126.86 × 13,691.16
  4. Step 4: Simplify right side
    48,751.47x = 1,001,191,540.56
  5. Step 5: Solve for x
    x = 1,001,191,540.56/48,751.47
  6. Step 6: Final answer
    x = 20,536.64

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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.