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Finding the Fourth Proportional to 69,908.86, 96,475.62 and 38,079.10

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Solution

The fourth proportional to 69,908.86, 96,475.62 and 38,079.10 is: 52,549.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,908.86 : 96,475.62 = 38,079.10 : x
  2. Step 2: Convert to fraction form
    69,908.86/96,475.62 = 38,079.10/x
  3. Step 3: Cross multiply
    69,908.86x = 96,475.62 × 38,079.10
  4. Step 4: Simplify right side
    69,908.86x = 3,673,704,781.54
  5. Step 5: Solve for x
    x = 3,673,704,781.54/69,908.86
  6. Step 6: Final answer
    x = 52,549.92

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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.