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Finding the Fourth Proportional to 48,635.49, 72,949.46 and 15,356.55

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Solution

The fourth proportional to 48,635.49, 72,949.46 and 15,356.55 is: 23,033.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,635.49 : 72,949.46 = 15,356.55 : x
  2. Step 2: Convert to fraction form
    48,635.49/72,949.46 = 15,356.55/x
  3. Step 3: Cross multiply
    48,635.49x = 72,949.46 × 15,356.55
  4. Step 4: Simplify right side
    48,635.49x = 1,120,251,953.18
  5. Step 5: Solve for x
    x = 1,120,251,953.18/48,635.49
  6. Step 6: Final answer
    x = 23,033.63

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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.