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Finding the Third Proportional to 641.88 and 1,497.63

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Solution

The third proportional to 641.88 and 1,497.63 is: 3,494.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    641.88 : 1,497.63 = 1,497.63 : x
  2. Step 2: Convert to fraction form
    641.88/1,497.63 = 1,497.63/x
  3. Step 3: Cross multiply
    641.88x = 1,497.63 × 1,497.63
  4. Step 4: Simplify right side
    641.88x = 2,242,880.64
  5. Step 5: Solve for x
    x = 2,242,880.64/641.88
  6. Step 6: Final answer
    x = 3,494.26

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Why These Related Problems?

These problems maintain the same ratio (2.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.