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Finding the Fourth Proportional to 18,764.96, 28,062.12 and 14,024.48

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Solution

The fourth proportional to 18,764.96, 28,062.12 and 14,024.48 is: 20,972.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,764.96 : 28,062.12 = 14,024.48 : x
  2. Step 2: Convert to fraction form
    18,764.96/28,062.12 = 14,024.48/x
  3. Step 3: Cross multiply
    18,764.96x = 28,062.12 × 14,024.48
  4. Step 4: Simplify right side
    18,764.96x = 393,556,640.70
  5. Step 5: Solve for x
    x = 393,556,640.70/18,764.96
  6. Step 6: Final answer
    x = 20,972.95

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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.