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Finding the Third Proportional to 13,425.75 and 20,913.19

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Solution

The third proportional to 13,425.75 and 20,913.19 is: 32,576.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,425.75 : 20,913.19 = 20,913.19 : x
  2. Step 2: Convert to fraction form
    13,425.75/20,913.19 = 20,913.19/x
  3. Step 3: Cross multiply
    13,425.75x = 20,913.19 × 20,913.19
  4. Step 4: Simplify right side
    13,425.75x = 437,361,411.41
  5. Step 5: Solve for x
    x = 437,361,411.41/13,425.75
  6. Step 6: Final answer
    x = 32,576.31

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.