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Finding the Third Proportional to 9,439.88 and 19,477.13

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Solution

The third proportional to 9,439.88 and 19,477.13 is: 40,186.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,439.88 : 19,477.13 = 19,477.13 : x
  2. Step 2: Convert to fraction form
    9,439.88/19,477.13 = 19,477.13/x
  3. Step 3: Cross multiply
    9,439.88x = 19,477.13 × 19,477.13
  4. Step 4: Simplify right side
    9,439.88x = 379,358,398.27
  5. Step 5: Solve for x
    x = 379,358,398.27/9,439.88
  6. Step 6: Final answer
    x = 40,186.80

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.