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Finding the Third Proportional to 2,439 and 5,346

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Solution

The third proportional to 2,439 and 5,346 is: 11,717.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,439 : 5,346 = 5,346 : x
  2. Step 2: Convert to fraction form
    2,439/5,346 = 5,346/x
  3. Step 3: Cross multiply
    2,439x = 5,346 × 5,346
  4. Step 4: Simplify right side
    2,439x = 28,579,716
  5. Step 5: Solve for x
    x = 28,579,716/2,439
  6. Step 6: Final answer
    x = 11,717.80

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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.