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Finding the Third Proportional to 5,636 and 8,580

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Solution

The third proportional to 5,636 and 8,580 is: 13,061.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,636 : 8,580 = 8,580 : x
  2. Step 2: Convert to fraction form
    5,636/8,580 = 8,580/x
  3. Step 3: Cross multiply
    5,636x = 8,580 × 8,580
  4. Step 4: Simplify right side
    5,636x = 73,616,400
  5. Step 5: Solve for x
    x = 73,616,400/5,636
  6. Step 6: Final answer
    x = 13,061.82

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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.