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Finding the Third Proportional to 708.75 and 1,525.50

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Solution

The third proportional to 708.75 and 1,525.50 is: 3,283.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    708.75 : 1,525.50 = 1,525.50 : x
  2. Step 2: Convert to fraction form
    708.75/1,525.50 = 1,525.50/x
  3. Step 3: Cross multiply
    708.75x = 1,525.50 × 1,525.50
  4. Step 4: Simplify right side
    708.75x = 2,327,150.25
  5. Step 5: Solve for x
    x = 2,327,150.25/708.75
  6. Step 6: Final answer
    x = 3,283.46

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.