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Finding the Third Proportional to 165.47 and 291.94

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Solution

The third proportional to 165.47 and 291.94 is: 515.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    165.47 : 291.94 = 291.94 : x
  2. Step 2: Convert to fraction form
    165.47/291.94 = 291.94/x
  3. Step 3: Cross multiply
    165.47x = 291.94 × 291.94
  4. Step 4: Simplify right side
    165.47x = 85,227.50
  5. Step 5: Solve for x
    x = 85,227.50/165.47
  6. Step 6: Final answer
    x = 515.07

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Why These Related Problems?

These problems maintain the same ratio (1.76) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.