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Finding the Third Proportional to 482.63 and 666.56

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Solution

The third proportional to 482.63 and 666.56 is: 920.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    482.63 : 666.56 = 666.56 : x
  2. Step 2: Convert to fraction form
    482.63/666.56 = 666.56/x
  3. Step 3: Cross multiply
    482.63x = 666.56 × 666.56
  4. Step 4: Simplify right side
    482.63x = 444,305.57
  5. Step 5: Solve for x
    x = 444,305.57/482.63
  6. Step 6: Final answer
    x = 920.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.