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Finding the Third Proportional to 4,772 and 5,636

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Solution

The third proportional to 4,772 and 5,636 is: 6,656.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,772 : 5,636 = 5,636 : x
  2. Step 2: Convert to fraction form
    4,772/5,636 = 5,636/x
  3. Step 3: Cross multiply
    4,772x = 5,636 × 5,636
  4. Step 4: Simplify right side
    4,772x = 31,764,496
  5. Step 5: Solve for x
    x = 31,764,496/4,772
  6. Step 6: Final answer
    x = 6,656.43

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Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.