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Finding the Third Proportional to 8,572 and 13,168

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Solution

The third proportional to 8,572 and 13,168 is: 20,228.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,572 : 13,168 = 13,168 : x
  2. Step 2: Convert to fraction form
    8,572/13,168 = 13,168/x
  3. Step 3: Cross multiply
    8,572x = 13,168 × 13,168
  4. Step 4: Simplify right side
    8,572x = 173,396,224
  5. Step 5: Solve for x
    x = 173,396,224/8,572
  6. Step 6: Final answer
    x = 20,228.21

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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.