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Finding the Third Proportional to 784.50 and 1,167.75

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Solution

The third proportional to 784.50 and 1,167.75 is: 1,738.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    784.50 : 1,167.75 = 1,167.75 : x
  2. Step 2: Convert to fraction form
    784.50/1,167.75 = 1,167.75/x
  3. Step 3: Cross multiply
    784.50x = 1,167.75 × 1,167.75
  4. Step 4: Simplify right side
    784.50x = 1,363,640.06
  5. Step 5: Solve for x
    x = 1,363,640.06/784.50
  6. Step 6: Final answer
    x = 1,738.23

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.