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Finding the Fourth Proportional to 14,151.97, 21,227.87 and 3,621.97

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Solution

The fourth proportional to 14,151.97, 21,227.87 and 3,621.97 is: 5,432.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,151.97 : 21,227.87 = 3,621.97 : x
  2. Step 2: Convert to fraction form
    14,151.97/21,227.87 = 3,621.97/x
  3. Step 3: Cross multiply
    14,151.97x = 21,227.87 × 3,621.97
  4. Step 4: Simplify right side
    14,151.97x = 76,886,624.49
  5. Step 5: Solve for x
    x = 76,886,624.49/14,151.97
  6. Step 6: Final answer
    x = 5,432.93

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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.