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Finding the Third Proportional to 1,558 and 2,392

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Solution

The third proportional to 1,558 and 2,392 is: 3,672.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,558 : 2,392 = 2,392 : x
  2. Step 2: Convert to fraction form
    1,558/2,392 = 2,392/x
  3. Step 3: Cross multiply
    1,558x = 2,392 × 2,392
  4. Step 4: Simplify right side
    1,558x = 5,721,664
  5. Step 5: Solve for x
    x = 5,721,664/1,558
  6. Step 6: Final answer
    x = 3,672.44

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.