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Finding the Third Proportional to 8,920.13 and 19,632.38

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Solution

The third proportional to 8,920.13 and 19,632.38 is: 43,209.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,920.13 : 19,632.38 = 19,632.38 : x
  2. Step 2: Convert to fraction form
    8,920.13/19,632.38 = 19,632.38/x
  3. Step 3: Cross multiply
    8,920.13x = 19,632.38 × 19,632.38
  4. Step 4: Simplify right side
    8,920.13x = 385,430,148.14
  5. Step 5: Solve for x
    x = 385,430,148.14/8,920.13
  6. Step 6: Final answer
    x = 43,209.05

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.