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Finding the Fourth Proportional to 49,101.80, 73,652.70 and 30,439.40

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Solution

The fourth proportional to 49,101.80, 73,652.70 and 30,439.40 is: 45,659.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,101.80 : 73,652.70 = 30,439.40 : x
  2. Step 2: Convert to fraction form
    49,101.80/73,652.70 = 30,439.40/x
  3. Step 3: Cross multiply
    49,101.80x = 73,652.70 × 30,439.40
  4. Step 4: Simplify right side
    49,101.80x = 2,241,943,996.38
  5. Step 5: Solve for x
    x = 2,241,943,996.38/49,101.80
  6. Step 6: Final answer
    x = 45,659.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.