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Finding the Third Proportional to 4,438.13 and 9,416.81

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Solution

The third proportional to 4,438.13 and 9,416.81 is: 19,980.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,438.13 : 9,416.81 = 9,416.81 : x
  2. Step 2: Convert to fraction form
    4,438.13/9,416.81 = 9,416.81/x
  3. Step 3: Cross multiply
    4,438.13x = 9,416.81 × 9,416.81
  4. Step 4: Simplify right side
    4,438.13x = 88,676,357.66
  5. Step 5: Solve for x
    x = 88,676,357.66/4,438.13
  6. Step 6: Final answer
    x = 19,980.59

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.