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Finding the Third Proportional to 1,478 and 2,356

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Solution

The third proportional to 1,478 and 2,356 is: 3,755.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478 : 2,356 = 2,356 : x
  2. Step 2: Convert to fraction form
    1,478/2,356 = 2,356/x
  3. Step 3: Cross multiply
    1,478x = 2,356 × 2,356
  4. Step 4: Simplify right side
    1,478x = 5,550,736
  5. Step 5: Solve for x
    x = 5,550,736/1,478
  6. Step 6: Final answer
    x = 3,755.57

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.