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Finding the Third Proportional to 13,439.25 and 28,724.63

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Solution

The third proportional to 13,439.25 and 28,724.63 is: 61,395.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,439.25 : 28,724.63 = 28,724.63 : x
  2. Step 2: Convert to fraction form
    13,439.25/28,724.63 = 28,724.63/x
  3. Step 3: Cross multiply
    13,439.25x = 28,724.63 × 28,724.63
  4. Step 4: Simplify right side
    13,439.25x = 825,104,081.39
  5. Step 5: Solve for x
    x = 825,104,081.39/13,439.25
  6. Step 6: Final answer
    x = 61,395.10

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.