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Finding the Third Proportional to 69,455.25 and 103,725

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Solution

The third proportional to 69,455.25 and 103,725 is: 154,903.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,455.25 : 103,725 = 103,725 : x
  2. Step 2: Convert to fraction form
    69,455.25/103,725 = 103,725/x
  3. Step 3: Cross multiply
    69,455.25x = 103,725 × 103,725
  4. Step 4: Simplify right side
    69,455.25x = 10,758,875,625
  5. Step 5: Solve for x
    x = 10,758,875,625/69,455.25
  6. Step 6: Final answer
    x = 154,903.71

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.