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Finding the Third Proportional to 3,964 and 5,656

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Solution

The third proportional to 3,964 and 5,656 is: 8,070.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,964 : 5,656 = 5,656 : x
  2. Step 2: Convert to fraction form
    3,964/5,656 = 5,656/x
  3. Step 3: Cross multiply
    3,964x = 5,656 × 5,656
  4. Step 4: Simplify right side
    3,964x = 31,990,336
  5. Step 5: Solve for x
    x = 31,990,336/3,964
  6. Step 6: Final answer
    x = 8,070.22

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.