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Finding the Third Proportional to 4,281.19 and 9,291.38

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Solution

The third proportional to 4,281.19 and 9,291.38 is: 20,164.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,281.19 : 9,291.38 = 9,291.38 : x
  2. Step 2: Convert to fraction form
    4,281.19/9,291.38 = 9,291.38/x
  3. Step 3: Cross multiply
    4,281.19x = 9,291.38 × 9,291.38
  4. Step 4: Simplify right side
    4,281.19x = 86,329,649.39
  5. Step 5: Solve for x
    x = 86,329,649.39/4,281.19
  6. Step 6: Final answer
    x = 20,164.88

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.