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Finding the Fourth Proportional to 48,934.20, 73,386.90 and 19,342.20

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Solution

The fourth proportional to 48,934.20, 73,386.90 and 19,342.20 is: 29,007.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,934.20 : 73,386.90 = 19,342.20 : x
  2. Step 2: Convert to fraction form
    48,934.20/73,386.90 = 19,342.20/x
  3. Step 3: Cross multiply
    48,934.20x = 73,386.90 × 19,342.20
  4. Step 4: Simplify right side
    48,934.20x = 1,419,464,097.18
  5. Step 5: Solve for x
    x = 1,419,464,097.18/48,934.20
  6. Step 6: Final answer
    x = 29,007.61

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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.