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Finding the Fourth Proportional to 48,687.42, 73,031.13 and 11,751.42

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Solution

The fourth proportional to 48,687.42, 73,031.13 and 11,751.42 is: 17,627.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,687.42 : 73,031.13 = 11,751.42 : x
  2. Step 2: Convert to fraction form
    48,687.42/73,031.13 = 11,751.42/x
  3. Step 3: Cross multiply
    48,687.42x = 73,031.13 × 11,751.42
  4. Step 4: Simplify right side
    48,687.42x = 858,219,481.70
  5. Step 5: Solve for x
    x = 858,219,481.70/48,687.42
  6. Step 6: Final answer
    x = 17,627.13

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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.