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Finding the Third Proportional to 5,664 and 8,656

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Solution

The third proportional to 5,664 and 8,656 is: 13,228.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,664 : 8,656 = 8,656 : x
  2. Step 2: Convert to fraction form
    5,664/8,656 = 8,656/x
  3. Step 3: Cross multiply
    5,664x = 8,656 × 8,656
  4. Step 4: Simplify right side
    5,664x = 74,926,336
  5. Step 5: Solve for x
    x = 74,926,336/5,664
  6. Step 6: Final answer
    x = 13,228.52

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.