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Finding the Fourth Proportional to 68,982.64, 103,473.71 and 19,062.65

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Solution

The fourth proportional to 68,982.64, 103,473.71 and 19,062.65 is: 28,593.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,982.64 : 103,473.71 = 19,062.65 : x
  2. Step 2: Convert to fraction form
    68,982.64/103,473.71 = 19,062.65/x
  3. Step 3: Cross multiply
    68,982.64x = 103,473.71 × 19,062.65
  4. Step 4: Simplify right side
    68,982.64x = 1,972,482,552.91
  5. Step 5: Solve for x
    x = 1,972,482,552.91/68,982.64
  6. Step 6: Final answer
    x = 28,593.90

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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.