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Finding the Third Proportional to 4,428 and 9,396

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Solution

The third proportional to 4,428 and 9,396 is: 19,937.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,428 : 9,396 = 9,396 : x
  2. Step 2: Convert to fraction form
    4,428/9,396 = 9,396/x
  3. Step 3: Cross multiply
    4,428x = 9,396 × 9,396
  4. Step 4: Simplify right side
    4,428x = 88,284,816
  5. Step 5: Solve for x
    x = 88,284,816/4,428
  6. Step 6: Final answer
    x = 19,937.85

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.