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Finding the Third Proportional to 13,002.75 and 20,089.13

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Solution

The third proportional to 13,002.75 and 20,089.13 is: 31,037.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,002.75 : 20,089.13 = 20,089.13 : x
  2. Step 2: Convert to fraction form
    13,002.75/20,089.13 = 20,089.13/x
  3. Step 3: Cross multiply
    13,002.75x = 20,089.13 × 20,089.13
  4. Step 4: Simplify right side
    13,002.75x = 403,572,943.27
  5. Step 5: Solve for x
    x = 403,572,943.27/13,002.75
  6. Step 6: Final answer
    x = 31,037.51

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.