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Finding the Third Proportional to 3,920,235.75 and 8,407,966.50

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Solution

The third proportional to 3,920,235.75 and 8,407,966.50 is: 18,033,073.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,920,235.75 : 8,407,966.50 = 8,407,966.50 : x
  2. Step 2: Convert to fraction form
    3,920,235.75/8,407,966.50 = 8,407,966.50/x
  3. Step 3: Cross multiply
    3,920,235.75x = 8,407,966.50 × 8,407,966.50
  4. Step 4: Simplify right side
    3,920,235.75x = 70,693,900,665,122.25
  5. Step 5: Solve for x
    x = 70,693,900,665,122.25/3,920,235.75
  6. Step 6: Final answer
    x = 18,033,073.82

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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.