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Finding the Third Proportional to 564.19 and 1,212.47

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Solution

The third proportional to 564.19 and 1,212.47 is: 2,605.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    564.19 : 1,212.47 = 1,212.47 : x
  2. Step 2: Convert to fraction form
    564.19/1,212.47 = 1,212.47/x
  3. Step 3: Cross multiply
    564.19x = 1,212.47 × 1,212.47
  4. Step 4: Simplify right side
    564.19x = 1,470,080.47
  5. Step 5: Solve for x
    x = 1,470,080.47/564.19
  6. Step 6: Final answer
    x = 2,605.66

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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.