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Finding the Third Proportional to 848.50 and 1,288.75

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Solution

The third proportional to 848.50 and 1,288.75 is: 1,957.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    848.50 : 1,288.75 = 1,288.75 : x
  2. Step 2: Convert to fraction form
    848.50/1,288.75 = 1,288.75/x
  3. Step 3: Cross multiply
    848.50x = 1,288.75 × 1,288.75
  4. Step 4: Simplify right side
    848.50x = 1,660,876.56
  5. Step 5: Solve for x
    x = 1,660,876.56/848.50
  6. Step 6: Final answer
    x = 1,957.43

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.