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Finding the Third Proportional to 2,916 and 4,630

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Solution

The third proportional to 2,916 and 4,630 is: 7,351.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,916 : 4,630 = 4,630 : x
  2. Step 2: Convert to fraction form
    2,916/4,630 = 4,630/x
  3. Step 3: Cross multiply
    2,916x = 4,630 × 4,630
  4. Step 4: Simplify right side
    2,916x = 21,436,900
  5. Step 5: Solve for x
    x = 21,436,900/2,916
  6. Step 6: Final answer
    x = 7,351.47

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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.