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Finding the Fourth Proportional to 50,687.44, 76,031.20 and 13,751.44

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Solution

The fourth proportional to 50,687.44, 76,031.20 and 13,751.44 is: 20,627.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,687.44 : 76,031.20 = 13,751.44 : x
  2. Step 2: Convert to fraction form
    50,687.44/76,031.20 = 13,751.44/x
  3. Step 3: Cross multiply
    50,687.44x = 76,031.20 × 13,751.44
  4. Step 4: Simplify right side
    50,687.44x = 1,045,538,484.93
  5. Step 5: Solve for x
    x = 1,045,538,484.93/50,687.44
  6. Step 6: Final answer
    x = 20,627.17

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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.