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Finding the Third Proportional to 4,391,199 and 9,515,448

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Solution

The third proportional to 4,391,199 and 9,515,448 is: 20,619,368.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,391,199 : 9,515,448 = 9,515,448 : x
  2. Step 2: Convert to fraction form
    4,391,199/9,515,448 = 9,515,448/x
  3. Step 3: Cross multiply
    4,391,199x = 9,515,448 × 9,515,448
  4. Step 4: Simplify right side
    4,391,199x = 90,543,750,640,704
  5. Step 5: Solve for x
    x = 90,543,750,640,704/4,391,199
  6. Step 6: Final answer
    x = 20,619,368.57

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.