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Finding the Third Proportional to 193.75 and 423.50

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Solution

The third proportional to 193.75 and 423.50 is: 925.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    193.75 : 423.50 = 423.50 : x
  2. Step 2: Convert to fraction form
    193.75/423.50 = 423.50/x
  3. Step 3: Cross multiply
    193.75x = 423.50 × 423.50
  4. Step 4: Simplify right side
    193.75x = 179,352.25
  5. Step 5: Solve for x
    x = 179,352.25/193.75
  6. Step 6: Final answer
    x = 925.69

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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.