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Finding the Third Proportional to 668.63 and 1,468.31

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Solution

The third proportional to 668.63 and 1,468.31 is: 3,224.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    668.63 : 1,468.31 = 1,468.31 : x
  2. Step 2: Convert to fraction form
    668.63/1,468.31 = 1,468.31/x
  3. Step 3: Cross multiply
    668.63x = 1,468.31 × 1,468.31
  4. Step 4: Simplify right side
    668.63x = 2,155,941.60
  5. Step 5: Solve for x
    x = 2,155,941.60/668.63
  6. Step 6: Final answer
    x = 3,224.44

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.