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Finding the Third Proportional to 3,730 and 8,168

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Solution

The third proportional to 3,730 and 8,168 is: 17,886.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,730 : 8,168 = 8,168 : x
  2. Step 2: Convert to fraction form
    3,730/8,168 = 8,168/x
  3. Step 3: Cross multiply
    3,730x = 8,168 × 8,168
  4. Step 4: Simplify right side
    3,730x = 66,716,224
  5. Step 5: Solve for x
    x = 66,716,224/3,730
  6. Step 6: Final answer
    x = 17,886.39

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.