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Finding the Third Proportional to 184.64 and 289.69

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Solution

The third proportional to 184.64 and 289.69 is: 454.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    184.64 : 289.69 = 289.69 : x
  2. Step 2: Convert to fraction form
    184.64/289.69 = 289.69/x
  3. Step 3: Cross multiply
    184.64x = 289.69 × 289.69
  4. Step 4: Simplify right side
    184.64x = 83,918.85
  5. Step 5: Solve for x
    x = 83,918.85/184.64
  6. Step 6: Final answer
    x = 454.50

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.