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Finding the Fourth Proportional to 9,969.14, 14,947.31 and 4,424.18

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Solution

The fourth proportional to 9,969.14, 14,947.31 and 4,424.18 is: 6,633.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,969.14 : 14,947.31 = 4,424.18 : x
  2. Step 2: Convert to fraction form
    9,969.14/14,947.31 = 4,424.18/x
  3. Step 3: Cross multiply
    9,969.14x = 14,947.31 × 4,424.18
  4. Step 4: Simplify right side
    9,969.14x = 66,129,589.96
  5. Step 5: Solve for x
    x = 66,129,589.96/9,969.14
  6. Step 6: Final answer
    x = 6,633.43

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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.