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Finding the Third Proportional to 173 and 470.50

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Solution

The third proportional to 173 and 470.50 is: 1,279.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    173 : 470.50 = 470.50 : x
  2. Step 2: Convert to fraction form
    173/470.50 = 470.50/x
  3. Step 3: Cross multiply
    173x = 470.50 × 470.50
  4. Step 4: Simplify right side
    173x = 221,370.25
  5. Step 5: Solve for x
    x = 221,370.25/173
  6. Step 6: Final answer
    x = 1,279.60

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Why These Related Problems?

These problems maintain the same ratio (2.72) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.