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Finding the Fourth Proportional to 17,728.71, 24,464.73 and 9,769.65

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Solution

The fourth proportional to 17,728.71, 24,464.73 and 9,769.65 is: 13,481.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,728.71 : 24,464.73 = 9,769.65 : x
  2. Step 2: Convert to fraction form
    17,728.71/24,464.73 = 9,769.65/x
  3. Step 3: Cross multiply
    17,728.71x = 24,464.73 × 9,769.65
  4. Step 4: Simplify right side
    17,728.71x = 239,011,849.44
  5. Step 5: Solve for x
    x = 239,011,849.44/17,728.71
  6. Step 6: Final answer
    x = 13,481.63

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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.