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Finding the Third Proportional to 231.75 and 501.47

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Solution

The third proportional to 231.75 and 501.47 is: 1,085.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    231.75 : 501.47 = 501.47 : x
  2. Step 2: Convert to fraction form
    231.75/501.47 = 501.47/x
  3. Step 3: Cross multiply
    231.75x = 501.47 × 501.47
  4. Step 4: Simplify right side
    231.75x = 251,470.91
  5. Step 5: Solve for x
    x = 251,470.91/231.75
  6. Step 6: Final answer
    x = 1,085.10

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.