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Finding the Third Proportional to 493 and 972.50

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Solution

The third proportional to 493 and 972.50 is: 1,918.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    493 : 972.50 = 972.50 : x
  2. Step 2: Convert to fraction form
    493/972.50 = 972.50/x
  3. Step 3: Cross multiply
    493x = 972.50 × 972.50
  4. Step 4: Simplify right side
    493x = 945,756.25
  5. Step 5: Solve for x
    x = 945,756.25/493
  6. Step 6: Final answer
    x = 1,918.37

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Why These Related Problems?

These problems maintain the same ratio (1.97) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.