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Finding the Fourth Proportional to 48,657.36, 72,932.70 and 19,042.68

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Solution

The fourth proportional to 48,657.36, 72,932.70 and 19,042.68 is: 28,543.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,657.36 : 72,932.70 = 19,042.68 : x
  2. Step 2: Convert to fraction form
    48,657.36/72,932.70 = 19,042.68/x
  3. Step 3: Cross multiply
    48,657.36x = 72,932.70 × 19,042.68
  4. Step 4: Simplify right side
    48,657.36x = 1,388,834,067.64
  5. Step 5: Solve for x
    x = 1,388,834,067.64/48,657.36
  6. Step 6: Final answer
    x = 28,543.14

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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.