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Finding the Third Proportional to 3,604 and 5,386

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Solution

The third proportional to 3,604 and 5,386 is: 8,049.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,604 : 5,386 = 5,386 : x
  2. Step 2: Convert to fraction form
    3,604/5,386 = 5,386/x
  3. Step 3: Cross multiply
    3,604x = 5,386 × 5,386
  4. Step 4: Simplify right side
    3,604x = 29,008,996
  5. Step 5: Solve for x
    x = 29,008,996/3,604
  6. Step 6: Final answer
    x = 8,049.11

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.