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Finding the Fourth Proportional to 14,958.87, 20,642.31 and 8,244.12

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Solution

The fourth proportional to 14,958.87, 20,642.31 and 8,244.12 is: 11,376.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,958.87 : 20,642.31 = 8,244.12 : x
  2. Step 2: Convert to fraction form
    14,958.87/20,642.31 = 8,244.12/x
  3. Step 3: Cross multiply
    14,958.87x = 20,642.31 × 8,244.12
  4. Step 4: Simplify right side
    14,958.87x = 170,177,680.72
  5. Step 5: Solve for x
    x = 170,177,680.72/14,958.87
  6. Step 6: Final answer
    x = 11,376.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.