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Finding the Third Proportional to 19,128,581 and 40,986,103

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Solution

The third proportional to 19,128,581 and 40,986,103 is: 87,819,406.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,128,581 : 40,986,103 = 40,986,103 : x
  2. Step 2: Convert to fraction form
    19,128,581/40,986,103 = 40,986,103/x
  3. Step 3: Cross multiply
    19,128,581x = 40,986,103 × 40,986,103
  4. Step 4: Simplify right side
    19,128,581x = 1,679,860,639,126,609
  5. Step 5: Solve for x
    x = 1,679,860,639,126,609/19,128,581
  6. Step 6: Final answer
    x = 87,819,406.95

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.