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Finding the Third Proportional to 584.50 and 1,258.38

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Solution

The third proportional to 584.50 and 1,258.38 is: 2,709.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    584.50 : 1,258.38 = 1,258.38 : x
  2. Step 2: Convert to fraction form
    584.50/1,258.38 = 1,258.38/x
  3. Step 3: Cross multiply
    584.50x = 1,258.38 × 1,258.38
  4. Step 4: Simplify right side
    584.50x = 1,583,507.64
  5. Step 5: Solve for x
    x = 1,583,507.64/584.50
  6. Step 6: Final answer
    x = 2,709.17

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.