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Finding the Third Proportional to 2,942 and 4,557

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Solution

The third proportional to 2,942 and 4,557 is: 7,058.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,942 : 4,557 = 4,557 : x
  2. Step 2: Convert to fraction form
    2,942/4,557 = 4,557/x
  3. Step 3: Cross multiply
    2,942x = 4,557 × 4,557
  4. Step 4: Simplify right side
    2,942x = 20,766,249
  5. Step 5: Solve for x
    x = 20,766,249/2,942
  6. Step 6: Final answer
    x = 7,058.55

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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.