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Finding the Fourth Proportional to 48,353.80, 66,723.78 and 27,129.16

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Solution

The fourth proportional to 48,353.80, 66,723.78 and 27,129.16 is: 37,435.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,353.80 : 66,723.78 = 27,129.16 : x
  2. Step 2: Convert to fraction form
    48,353.80/66,723.78 = 27,129.16/x
  3. Step 3: Cross multiply
    48,353.80x = 66,723.78 × 27,129.16
  4. Step 4: Simplify right side
    48,353.80x = 1,810,160,103.42
  5. Step 5: Solve for x
    x = 1,810,160,103.42/48,353.80
  6. Step 6: Final answer
    x = 37,435.74

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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.