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Finding the Third Proportional to 425.50 and 929

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Solution

The third proportional to 425.50 and 929 is: 2,028.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    425.50 : 929 = 929 : x
  2. Step 2: Convert to fraction form
    425.50/929 = 929/x
  3. Step 3: Cross multiply
    425.50x = 929 × 929
  4. Step 4: Simplify right side
    425.50x = 863,041
  5. Step 5: Solve for x
    x = 863,041/425.50
  6. Step 6: Final answer
    x = 2,028.30

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.