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Finding the Third Proportional to 4,487,632 and 9,872,744

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Solution

The third proportional to 4,487,632 and 9,872,744 is: 21,719,934.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,487,632 : 9,872,744 = 9,872,744 : x
  2. Step 2: Convert to fraction form
    4,487,632/9,872,744 = 9,872,744/x
  3. Step 3: Cross multiply
    4,487,632x = 9,872,744 × 9,872,744
  4. Step 4: Simplify right side
    4,487,632x = 97,471,074,089,536
  5. Step 5: Solve for x
    x = 97,471,074,089,536/4,487,632
  6. Step 6: Final answer
    x = 21,719,934.72

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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.