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Finding the Third Proportional to 13,110 and 14,190

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Solution

The third proportional to 13,110 and 14,190 is: 15,358.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,110 : 14,190 = 14,190 : x
  2. Step 2: Convert to fraction form
    13,110/14,190 = 14,190/x
  3. Step 3: Cross multiply
    13,110x = 14,190 × 14,190
  4. Step 4: Simplify right side
    13,110x = 201,356,100
  5. Step 5: Solve for x
    x = 201,356,100/13,110
  6. Step 6: Final answer
    x = 15,358.97

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Why These Related Problems?

These problems maintain the same ratio (1.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.