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Finding the Third Proportional to 2,128 and 2,437

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Solution

The third proportional to 2,128 and 2,437 is: 2,790.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128 : 2,437 = 2,437 : x
  2. Step 2: Convert to fraction form
    2,128/2,437 = 2,437/x
  3. Step 3: Cross multiply
    2,128x = 2,437 × 2,437
  4. Step 4: Simplify right side
    2,128x = 5,938,969
  5. Step 5: Solve for x
    x = 5,938,969/2,128
  6. Step 6: Final answer
    x = 2,790.87

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Why These Related Problems?

These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.