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Finding the Third Proportional to 873.50 and 1,224.25

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Solution

The third proportional to 873.50 and 1,224.25 is: 1,715.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    873.50 : 1,224.25 = 1,224.25 : x
  2. Step 2: Convert to fraction form
    873.50/1,224.25 = 1,224.25/x
  3. Step 3: Cross multiply
    873.50x = 1,224.25 × 1,224.25
  4. Step 4: Simplify right side
    873.50x = 1,498,788.06
  5. Step 5: Solve for x
    x = 1,498,788.06/873.50
  6. Step 6: Final answer
    x = 1,715.84

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.