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Finding the Third Proportional to 1,240,220.25 and 1,860,337.13

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Solution

The third proportional to 1,240,220.25 and 1,860,337.13 is: 2,790,515.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,220.25 : 1,860,337.13 = 1,860,337.13 : x
  2. Step 2: Convert to fraction form
    1,240,220.25/1,860,337.13 = 1,860,337.13/x
  3. Step 3: Cross multiply
    1,240,220.25x = 1,860,337.13 × 1,860,337.13
  4. Step 4: Simplify right side
    1,240,220.25x = 3,460,854,218,653.27
  5. Step 5: Solve for x
    x = 3,460,854,218,653.27/1,240,220.25
  6. Step 6: Final answer
    x = 2,790,515.81

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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.