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Finding the Third Proportional to 3,648 and 4,432

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Solution

The third proportional to 3,648 and 4,432 is: 5,384.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,648 : 4,432 = 4,432 : x
  2. Step 2: Convert to fraction form
    3,648/4,432 = 4,432/x
  3. Step 3: Cross multiply
    3,648x = 4,432 × 4,432
  4. Step 4: Simplify right side
    3,648x = 19,642,624
  5. Step 5: Solve for x
    x = 19,642,624/3,648
  6. Step 6: Final answer
    x = 5,384.49

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Why These Related Problems?

These problems maintain the same ratio (1.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.