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Finding the Fourth Proportional to 48,632.88, 72,943.17 and 15,356.31

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Solution

The fourth proportional to 48,632.88, 72,943.17 and 15,356.31 is: 23,032.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,632.88 : 72,943.17 = 15,356.31 : x
  2. Step 2: Convert to fraction form
    48,632.88/72,943.17 = 15,356.31/x
  3. Step 3: Cross multiply
    48,632.88x = 72,943.17 × 15,356.31
  4. Step 4: Simplify right side
    48,632.88x = 1,120,137,599.78
  5. Step 5: Solve for x
    x = 1,120,137,599.78/48,632.88
  6. Step 6: Final answer
    x = 23,032.52

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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.