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Finding the Fourth Proportional to 48,879.56, 67,449.30 and 27,655.40

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Solution

The fourth proportional to 48,879.56, 67,449.30 and 27,655.40 is: 38,161.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,879.56 : 67,449.30 = 27,655.40 : x
  2. Step 2: Convert to fraction form
    48,879.56/67,449.30 = 27,655.40/x
  3. Step 3: Cross multiply
    48,879.56x = 67,449.30 × 27,655.40
  4. Step 4: Simplify right side
    48,879.56x = 1,865,337,371.22
  5. Step 5: Solve for x
    x = 1,865,337,371.22/48,879.56
  6. Step 6: Final answer
    x = 38,161.91

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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.