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Finding the Third Proportional to 3,964 and 5,335

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Solution

The third proportional to 3,964 and 5,335 is: 7,180.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,964 : 5,335 = 5,335 : x
  2. Step 2: Convert to fraction form
    3,964/5,335 = 5,335/x
  3. Step 3: Cross multiply
    3,964x = 5,335 × 5,335
  4. Step 4: Simplify right side
    3,964x = 28,462,225
  5. Step 5: Solve for x
    x = 28,462,225/3,964
  6. Step 6: Final answer
    x = 7,180.18

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.