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Finding the Fourth Proportional to 48,272.76, 66,621.15 and 27,855.90

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Solution

The fourth proportional to 48,272.76, 66,621.15 and 27,855.90 is: 38,443.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,272.76 : 66,621.15 = 27,855.90 : x
  2. Step 2: Convert to fraction form
    48,272.76/66,621.15 = 27,855.90/x
  3. Step 3: Cross multiply
    48,272.76x = 66,621.15 × 27,855.90
  4. Step 4: Simplify right side
    48,272.76x = 1,855,792,092.29
  5. Step 5: Solve for x
    x = 1,855,792,092.29/48,272.76
  6. Step 6: Final answer
    x = 38,443.88

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1.5x scale

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.