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Finding the Third Proportional to 210.75 and 475.88

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Solution

The third proportional to 210.75 and 475.88 is: 1,074.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    210.75 : 475.88 = 475.88 : x
  2. Step 2: Convert to fraction form
    210.75/475.88 = 475.88/x
  3. Step 3: Cross multiply
    210.75x = 475.88 × 475.88
  4. Step 4: Simplify right side
    210.75x = 226,457.02
  5. Step 5: Solve for x
    x = 226,457.02/210.75
  6. Step 6: Final answer
    x = 1,074.53

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Why These Related Problems?

These problems maintain the same ratio (2.26) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.