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Finding the Third Proportional to 18,712,842 and 40,953,329

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Solution

The third proportional to 18,712,842 and 40,953,329 is: 89,626,960.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,712,842 : 40,953,329 = 40,953,329 : x
  2. Step 2: Convert to fraction form
    18,712,842/40,953,329 = 40,953,329/x
  3. Step 3: Cross multiply
    18,712,842x = 40,953,329 × 40,953,329
  4. Step 4: Simplify right side
    18,712,842x = 1,677,175,156,182,241
  5. Step 5: Solve for x
    x = 1,677,175,156,182,241/18,712,842
  6. Step 6: Final answer
    x = 89,626,960.79

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.