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Finding the Third Proportional to 5,394 and 8,330

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Solution

The third proportional to 5,394 and 8,330 is: 12,864.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,394 : 8,330 = 8,330 : x
  2. Step 2: Convert to fraction form
    5,394/8,330 = 8,330/x
  3. Step 3: Cross multiply
    5,394x = 8,330 × 8,330
  4. Step 4: Simplify right side
    5,394x = 69,388,900
  5. Step 5: Solve for x
    x = 69,388,900/5,394
  6. Step 6: Final answer
    x = 12,864.09

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.