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Finding the Third Proportional to 566 and 615.50

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Solution

The third proportional to 566 and 615.50 is: 669.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    566 : 615.50 = 615.50 : x
  2. Step 2: Convert to fraction form
    566/615.50 = 615.50/x
  3. Step 3: Cross multiply
    566x = 615.50 × 615.50
  4. Step 4: Simplify right side
    566x = 378,840.25
  5. Step 5: Solve for x
    x = 378,840.25/566
  6. Step 6: Final answer
    x = 669.33

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.