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Finding the Third Proportional to 2,713 and 4,490

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Solution

The third proportional to 2,713 and 4,490 is: 7,430.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,713 : 4,490 = 4,490 : x
  2. Step 2: Convert to fraction form
    2,713/4,490 = 4,490/x
  3. Step 3: Cross multiply
    2,713x = 4,490 × 4,490
  4. Step 4: Simplify right side
    2,713x = 20,160,100
  5. Step 5: Solve for x
    x = 20,160,100/2,713
  6. Step 6: Final answer
    x = 7,430.93

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Why These Related Problems?

These problems maintain the same ratio (1.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.