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Finding the Fourth Proportional to 48,621.71, 67,116.41 and 32,715.39

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Solution

The fourth proportional to 48,621.71, 67,116.41 and 32,715.39 is: 45,159.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,621.71 : 67,116.41 = 32,715.39 : x
  2. Step 2: Convert to fraction form
    48,621.71/67,116.41 = 32,715.39/x
  3. Step 3: Cross multiply
    48,621.71x = 67,116.41 × 32,715.39
  4. Step 4: Simplify right side
    48,621.71x = 2,195,739,364.97
  5. Step 5: Solve for x
    x = 2,195,739,364.97/48,621.71
  6. Step 6: Final answer
    x = 45,159.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.