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Finding the Fourth Proportional to 69,992.65, 96,590.31 and 38,162.08

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Solution

The fourth proportional to 69,992.65, 96,590.31 and 38,162.08 is: 52,663.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,992.65 : 96,590.31 = 38,162.08 : x
  2. Step 2: Convert to fraction form
    69,992.65/96,590.31 = 38,162.08/x
  3. Step 3: Cross multiply
    69,992.65x = 96,590.31 × 38,162.08
  4. Step 4: Simplify right side
    69,992.65x = 3,686,086,654.49
  5. Step 5: Solve for x
    x = 3,686,086,654.49/69,992.65
  6. Step 6: Final answer
    x = 52,663.91

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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.