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Finding the Fourth Proportional to 48,710.80, 67,221.80 and 27,485.97

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Solution

The fourth proportional to 48,710.80, 67,221.80 and 27,485.97 is: 37,931.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,710.80 : 67,221.80 = 27,485.97 : x
  2. Step 2: Convert to fraction form
    48,710.80/67,221.80 = 27,485.97/x
  3. Step 3: Cross multiply
    48,710.80x = 67,221.80 × 27,485.97
  4. Step 4: Simplify right side
    48,710.80x = 1,847,656,378.15
  5. Step 5: Solve for x
    x = 1,847,656,378.15/48,710.80
  6. Step 6: Final answer
    x = 37,931.14

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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.