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Finding the Third Proportional to 13,480 and 18,472

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Solution

The third proportional to 13,480 and 18,472 is: 25,312.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,480 : 18,472 = 18,472 : x
  2. Step 2: Convert to fraction form
    13,480/18,472 = 18,472/x
  3. Step 3: Cross multiply
    13,480x = 18,472 × 18,472
  4. Step 4: Simplify right side
    13,480x = 341,214,784
  5. Step 5: Solve for x
    x = 341,214,784/13,480
  6. Step 6: Final answer
    x = 25,312.67

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.