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Finding the Third Proportional to 5,772 and 8,772

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Solution

The third proportional to 5,772 and 8,772 is: 13,331.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,772 : 8,772 = 8,772 : x
  2. Step 2: Convert to fraction form
    5,772/8,772 = 8,772/x
  3. Step 3: Cross multiply
    5,772x = 8,772 × 8,772
  4. Step 4: Simplify right side
    5,772x = 76,947,984
  5. Step 5: Solve for x
    x = 76,947,984/5,772
  6. Step 6: Final answer
    x = 13,331.25

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.