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Finding the Third Proportional to 987,015 and 2,123,754

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Solution

The third proportional to 987,015 and 2,123,754 is: 4,569,668.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,015 : 2,123,754 = 2,123,754 : x
  2. Step 2: Convert to fraction form
    987,015/2,123,754 = 2,123,754/x
  3. Step 3: Cross multiply
    987,015x = 2,123,754 × 2,123,754
  4. Step 4: Simplify right side
    987,015x = 4,510,331,052,516
  5. Step 5: Solve for x
    x = 4,510,331,052,516/987,015
  6. Step 6: Final answer
    x = 4,569,668.19

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.