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Finding the Fourth Proportional to 12,474.91, 17,207.72 and 8,497.81

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Solution

The fourth proportional to 12,474.91, 17,207.72 and 8,497.81 is: 11,721.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,474.91 : 17,207.72 = 8,497.81 : x
  2. Step 2: Convert to fraction form
    12,474.91/17,207.72 = 8,497.81/x
  3. Step 3: Cross multiply
    12,474.91x = 17,207.72 × 8,497.81
  4. Step 4: Simplify right side
    12,474.91x = 146,227,849.05
  5. Step 5: Solve for x
    x = 146,227,849.05/12,474.91
  6. Step 6: Final answer
    x = 11,721.76

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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.