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Finding the Fourth Proportional to 9,169.38, 12,653.46 and 5,392.44

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Solution

The fourth proportional to 9,169.38, 12,653.46 and 5,392.44 is: 7,441.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,169.38 : 12,653.46 = 5,392.44 : x
  2. Step 2: Convert to fraction form
    9,169.38/12,653.46 = 5,392.44/x
  3. Step 3: Cross multiply
    9,169.38x = 12,653.46 × 5,392.44
  4. Step 4: Simplify right side
    9,169.38x = 68,233,023.84
  5. Step 5: Solve for x
    x = 68,233,023.84/9,169.38
  6. Step 6: Final answer
    x = 7,441.40

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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.