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Finding the Third Proportional to 293.75 and 651.25

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Solution

The third proportional to 293.75 and 651.25 is: 1,443.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    293.75 : 651.25 = 651.25 : x
  2. Step 2: Convert to fraction form
    293.75/651.25 = 651.25/x
  3. Step 3: Cross multiply
    293.75x = 651.25 × 651.25
  4. Step 4: Simplify right side
    293.75x = 424,126.56
  5. Step 5: Solve for x
    x = 424,126.56/293.75
  6. Step 6: Final answer
    x = 1,443.84

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.