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Finding the Third Proportional to 40,539,717 and 87,456,699

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Solution

The third proportional to 40,539,717 and 87,456,699 is: 188,671,129.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,539,717 : 87,456,699 = 87,456,699 : x
  2. Step 2: Convert to fraction form
    40,539,717/87,456,699 = 87,456,699/x
  3. Step 3: Cross multiply
    40,539,717x = 87,456,699 × 87,456,699
  4. Step 4: Simplify right side
    40,539,717x = 7,648,674,199,976,601
  5. Step 5: Solve for x
    x = 7,648,674,199,976,601/40,539,717
  6. Step 6: Final answer
    x = 188,671,129.60

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.