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Finding the Third Proportional to 564.94 and 1,215

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Solution

The third proportional to 564.94 and 1,215 is: 2,613.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    564.94 : 1,215 = 1,215 : x
  2. Step 2: Convert to fraction form
    564.94/1,215 = 1,215/x
  3. Step 3: Cross multiply
    564.94x = 1,215 × 1,215
  4. Step 4: Simplify right side
    564.94x = 1,476,225
  5. Step 5: Solve for x
    x = 1,476,225/564.94
  6. Step 6: Final answer
    x = 2,613.08

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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.