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Finding the Third Proportional to 19,115,820 and 28,315,394

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Solution

The third proportional to 19,115,820 and 28,315,394 is: 41,942,304.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,115,820 : 28,315,394 = 28,315,394 : x
  2. Step 2: Convert to fraction form
    19,115,820/28,315,394 = 28,315,394/x
  3. Step 3: Cross multiply
    19,115,820x = 28,315,394 × 28,315,394
  4. Step 4: Simplify right side
    19,115,820x = 801,761,537,375,236
  5. Step 5: Solve for x
    x = 801,761,537,375,236/19,115,820
  6. Step 6: Final answer
    x = 41,942,304.19

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.