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Finding the Third Proportional to 2,535 and 5,487

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Solution

The third proportional to 2,535 and 5,487 is: 11,876.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,535 : 5,487 = 5,487 : x
  2. Step 2: Convert to fraction form
    2,535/5,487 = 5,487/x
  3. Step 3: Cross multiply
    2,535x = 5,487 × 5,487
  4. Step 4: Simplify right side
    2,535x = 30,107,169
  5. Step 5: Solve for x
    x = 30,107,169/2,535
  6. Step 6: Final answer
    x = 11,876.60

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.