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Finding the Third Proportional to 245.75 and 473.50

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Solution

The third proportional to 245.75 and 473.50 is: 912.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    245.75 : 473.50 = 473.50 : x
  2. Step 2: Convert to fraction form
    245.75/473.50 = 473.50/x
  3. Step 3: Cross multiply
    245.75x = 473.50 × 473.50
  4. Step 4: Simplify right side
    245.75x = 224,202.25
  5. Step 5: Solve for x
    x = 224,202.25/245.75
  6. Step 6: Final answer
    x = 912.32

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Why These Related Problems?

These problems maintain the same ratio (1.93) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.