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Finding the Third Proportional to 462.50 and 879

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Solution

The third proportional to 462.50 and 879 is: 1,670.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    462.50 : 879 = 879 : x
  2. Step 2: Convert to fraction form
    462.50/879 = 879/x
  3. Step 3: Cross multiply
    462.50x = 879 × 879
  4. Step 4: Simplify right side
    462.50x = 772,641
  5. Step 5: Solve for x
    x = 772,641/462.50
  6. Step 6: Final answer
    x = 1,670.58

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Why These Related Problems?

These problems maintain the same ratio (1.90) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.