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Finding the Third Proportional to 1,664 and 2,957

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Solution

The third proportional to 1,664 and 2,957 is: 5,254.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,664 : 2,957 = 2,957 : x
  2. Step 2: Convert to fraction form
    1,664/2,957 = 2,957/x
  3. Step 3: Cross multiply
    1,664x = 2,957 × 2,957
  4. Step 4: Simplify right side
    1,664x = 8,743,849
  5. Step 5: Solve for x
    x = 8,743,849/1,664
  6. Step 6: Final answer
    x = 5,254.72

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Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.