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Finding the Third Proportional to 2,871,390 and 4,448,257.50

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Solution

The third proportional to 2,871,390 and 4,448,257.50 is: 6,891,085.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,871,390 : 4,448,257.50 = 4,448,257.50 : x
  2. Step 2: Convert to fraction form
    2,871,390/4,448,257.50 = 4,448,257.50/x
  3. Step 3: Cross multiply
    2,871,390x = 4,448,257.50 × 4,448,257.50
  4. Step 4: Simplify right side
    2,871,390x = 19,786,994,786,306.25
  5. Step 5: Solve for x
    x = 19,786,994,786,306.25/2,871,390
  6. Step 6: Final answer
    x = 6,891,085.78

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.