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Finding the Third Proportional to 3,988,143 and 6,187,063.50

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Solution

The third proportional to 3,988,143 and 6,187,063.50 is: 9,598,390.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988,143 : 6,187,063.50 = 6,187,063.50 : x
  2. Step 2: Convert to fraction form
    3,988,143/6,187,063.50 = 6,187,063.50/x
  3. Step 3: Cross multiply
    3,988,143x = 6,187,063.50 × 6,187,063.50
  4. Step 4: Simplify right side
    3,988,143x = 38,279,754,753,032.25
  5. Step 5: Solve for x
    x = 38,279,754,753,032.25/3,988,143
  6. Step 6: Final answer
    x = 9,598,390.72

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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.