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Finding the Third Proportional to 13,140 and 14,922

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Solution

The third proportional to 13,140 and 14,922 is: 16,945.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,140 : 14,922 = 14,922 : x
  2. Step 2: Convert to fraction form
    13,140/14,922 = 14,922/x
  3. Step 3: Cross multiply
    13,140x = 14,922 × 14,922
  4. Step 4: Simplify right side
    13,140x = 222,666,084
  5. Step 5: Solve for x
    x = 222,666,084/13,140
  6. Step 6: Final answer
    x = 16,945.67

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Why These Related Problems?

These problems maintain the same ratio (1.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.