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Finding the Third Proportional to 489.50 and 1,073

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Solution

The third proportional to 489.50 and 1,073 is: 2,352.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    489.50 : 1,073 = 1,073 : x
  2. Step 2: Convert to fraction form
    489.50/1,073 = 1,073/x
  3. Step 3: Cross multiply
    489.50x = 1,073 × 1,073
  4. Step 4: Simplify right side
    489.50x = 1,151,329
  5. Step 5: Solve for x
    x = 1,151,329/489.50
  6. Step 6: Final answer
    x = 2,352.05

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.