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Finding the Third Proportional to 694.41 and 1,521.84

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Solution

The third proportional to 694.41 and 1,521.84 is: 3,335.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    694.41 : 1,521.84 = 1,521.84 : x
  2. Step 2: Convert to fraction form
    694.41/1,521.84 = 1,521.84/x
  3. Step 3: Cross multiply
    694.41x = 1,521.84 × 1,521.84
  4. Step 4: Simplify right side
    694.41x = 2,316,008.40
  5. Step 5: Solve for x
    x = 2,316,008.40/694.41
  6. Step 6: Final answer
    x = 3,335.24

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.