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Finding the Third Proportional to 1,214,661.38 and 2,658,138.75

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Solution

The third proportional to 1,214,661.38 and 2,658,138.75 is: 5,817,013.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,661.38 : 2,658,138.75 = 2,658,138.75 : x
  2. Step 2: Convert to fraction form
    1,214,661.38/2,658,138.75 = 2,658,138.75/x
  3. Step 3: Cross multiply
    1,214,661.38x = 2,658,138.75 × 2,658,138.75
  4. Step 4: Simplify right side
    1,214,661.38x = 7,065,701,614,251.56
  5. Step 5: Solve for x
    x = 7,065,701,614,251.56/1,214,661.38
  6. Step 6: Final answer
    x = 5,817,013.50

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.