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Finding the Third Proportional to 186 and 431.50

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Solution

The third proportional to 186 and 431.50 is: 1,001.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    186 : 431.50 = 431.50 : x
  2. Step 2: Convert to fraction form
    186/431.50 = 431.50/x
  3. Step 3: Cross multiply
    186x = 431.50 × 431.50
  4. Step 4: Simplify right side
    186x = 186,192.25
  5. Step 5: Solve for x
    x = 186,192.25/186
  6. Step 6: Final answer
    x = 1,001.03

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Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.