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Finding the Third Proportional to 5,616 and 8,560

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Solution

The third proportional to 5,616 and 8,560 is: 13,047.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,616 : 8,560 = 8,560 : x
  2. Step 2: Convert to fraction form
    5,616/8,560 = 8,560/x
  3. Step 3: Cross multiply
    5,616x = 8,560 × 8,560
  4. Step 4: Simplify right side
    5,616x = 73,273,600
  5. Step 5: Solve for x
    x = 73,273,600/5,616
  6. Step 6: Final answer
    x = 13,047.29

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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.