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Finding the Third Proportional to 5,429.11 and 11,897.30

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Solution

The third proportional to 5,429.11 and 11,897.30 is: 26,071.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429.11 : 11,897.30 = 11,897.30 : x
  2. Step 2: Convert to fraction form
    5,429.11/11,897.30 = 11,897.30/x
  3. Step 3: Cross multiply
    5,429.11x = 11,897.30 × 11,897.30
  4. Step 4: Simplify right side
    5,429.11x = 141,545,672.93
  5. Step 5: Solve for x
    x = 141,545,672.93/5,429.11
  6. Step 6: Final answer
    x = 26,071.62

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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.