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Finding the Third Proportional to 786.50 and 1,552.75

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Solution

The third proportional to 786.50 and 1,552.75 is: 3,065.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    786.50 : 1,552.75 = 1,552.75 : x
  2. Step 2: Convert to fraction form
    786.50/1,552.75 = 1,552.75/x
  3. Step 3: Cross multiply
    786.50x = 1,552.75 × 1,552.75
  4. Step 4: Simplify right side
    786.50x = 2,411,032.56
  5. Step 5: Solve for x
    x = 2,411,032.56/786.50
  6. Step 6: Final answer
    x = 3,065.52

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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.