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Finding the Fourth Proportional to 48,999.20, 73,498.80 and 47,541.20

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Solution

The fourth proportional to 48,999.20, 73,498.80 and 47,541.20 is: 71,311.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,999.20 : 73,498.80 = 47,541.20 : x
  2. Step 2: Convert to fraction form
    48,999.20/73,498.80 = 47,541.20/x
  3. Step 3: Cross multiply
    48,999.20x = 73,498.80 × 47,541.20
  4. Step 4: Simplify right side
    48,999.20x = 3,494,221,150.56
  5. Step 5: Solve for x
    x = 3,494,221,150.56/48,999.20
  6. Step 6: Final answer
    x = 71,311.80

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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.