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Finding the Third Proportional to 3,332 and 4,990

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Solution

The third proportional to 3,332 and 4,990 is: 7,473.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,332 : 4,990 = 4,990 : x
  2. Step 2: Convert to fraction form
    3,332/4,990 = 4,990/x
  3. Step 3: Cross multiply
    3,332x = 4,990 × 4,990
  4. Step 4: Simplify right side
    3,332x = 24,900,100
  5. Step 5: Solve for x
    x = 24,900,100/3,332
  6. Step 6: Final answer
    x = 7,473.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.