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Finding the Third Proportional to 1,129,040.65 and 1,817,920.97

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Solution

The third proportional to 1,129,040.65 and 1,817,920.97 is: 2,927,119.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,040.65 : 1,817,920.97 = 1,817,920.97 : x
  2. Step 2: Convert to fraction form
    1,129,040.65/1,817,920.97 = 1,817,920.97/x
  3. Step 3: Cross multiply
    1,129,040.65x = 1,817,920.97 × 1,817,920.97
  4. Step 4: Simplify right side
    1,129,040.65x = 3,304,836,648,620.94
  5. Step 5: Solve for x
    x = 3,304,836,648,620.94/1,129,040.65
  6. Step 6: Final answer
    x = 2,927,119.28

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.