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Finding the Third Proportional to 7,176.09 and 11,367.84

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Solution

The third proportional to 7,176.09 and 11,367.84 is: 18,008.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,176.09 : 11,367.84 = 11,367.84 : x
  2. Step 2: Convert to fraction form
    7,176.09/11,367.84 = 11,367.84/x
  3. Step 3: Cross multiply
    7,176.09x = 11,367.84 × 11,367.84
  4. Step 4: Simplify right side
    7,176.09x = 129,227,871.52
  5. Step 5: Solve for x
    x = 129,227,871.52/7,176.09
  6. Step 6: Final answer
    x = 18,008.11

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.