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Finding the Third Proportional to 13,291,738 and 19,915,432

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Solution

The third proportional to 13,291,738 and 19,915,432 is: 29,839,922.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,291,738 : 19,915,432 = 19,915,432 : x
  2. Step 2: Convert to fraction form
    13,291,738/19,915,432 = 19,915,432/x
  3. Step 3: Cross multiply
    13,291,738x = 19,915,432 × 19,915,432
  4. Step 4: Simplify right side
    13,291,738x = 396,624,431,746,624
  5. Step 5: Solve for x
    x = 396,624,431,746,624/13,291,738
  6. Step 6: Final answer
    x = 29,839,922.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.