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Finding the Third Proportional to 1,377,258.75 and 2,137,735.13

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Solution

The third proportional to 1,377,258.75 and 2,137,735.13 is: 3,318,121.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,258.75 : 2,137,735.13 = 2,137,735.13 : x
  2. Step 2: Convert to fraction form
    1,377,258.75/2,137,735.13 = 2,137,735.13/x
  3. Step 3: Cross multiply
    1,377,258.75x = 2,137,735.13 × 2,137,735.13
  4. Step 4: Simplify right side
    1,377,258.75x = 4,569,911,464,658.77
  5. Step 5: Solve for x
    x = 4,569,911,464,658.77/1,377,258.75
  6. Step 6: Final answer
    x = 3,318,121.21

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.