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Finding the Third Proportional to 4,186.13 and 9,178.88

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Solution

The third proportional to 4,186.13 and 9,178.88 is: 20,126.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,186.13 : 9,178.88 = 9,178.88 : x
  2. Step 2: Convert to fraction form
    4,186.13/9,178.88 = 9,178.88/x
  3. Step 3: Cross multiply
    4,186.13x = 9,178.88 × 9,178.88
  4. Step 4: Simplify right side
    4,186.13x = 84,251,746.27
  5. Step 5: Solve for x
    x = 84,251,746.27/4,186.13
  6. Step 6: Final answer
    x = 20,126.43

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1.5x scale

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.