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Finding the Third Proportional to 9,330 and 14,190

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Solution

The third proportional to 9,330 and 14,190 is: 21,581.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,330 : 14,190 = 14,190 : x
  2. Step 2: Convert to fraction form
    9,330/14,190 = 14,190/x
  3. Step 3: Cross multiply
    9,330x = 14,190 × 14,190
  4. Step 4: Simplify right side
    9,330x = 201,356,100
  5. Step 5: Solve for x
    x = 201,356,100/9,330
  6. Step 6: Final answer
    x = 21,581.58

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.