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Finding the Third Proportional to 469.25 and 707.63

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Solution

The third proportional to 469.25 and 707.63 is: 1,067.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    469.25 : 707.63 = 707.63 : x
  2. Step 2: Convert to fraction form
    469.25/707.63 = 707.63/x
  3. Step 3: Cross multiply
    469.25x = 707.63 × 707.63
  4. Step 4: Simplify right side
    469.25x = 500,733.14
  5. Step 5: Solve for x
    x = 500,733.14/469.25
  6. Step 6: Final answer
    x = 1,067.09

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.