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Finding the Third Proportional to 4,402 and 7,427

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Solution

The third proportional to 4,402 and 7,427 is: 12,530.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,402 : 7,427 = 7,427 : x
  2. Step 2: Convert to fraction form
    4,402/7,427 = 7,427/x
  3. Step 3: Cross multiply
    4,402x = 7,427 × 7,427
  4. Step 4: Simplify right side
    4,402x = 55,160,329
  5. Step 5: Solve for x
    x = 55,160,329/4,402
  6. Step 6: Final answer
    x = 12,530.74

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Why These Related Problems?

These problems maintain the same ratio (1.69) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.