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Finding the Third Proportional to 852.40 and 1,301.38

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Solution

The third proportional to 852.40 and 1,301.38 is: 1,986.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    852.40 : 1,301.38 = 1,301.38 : x
  2. Step 2: Convert to fraction form
    852.40/1,301.38 = 1,301.38/x
  3. Step 3: Cross multiply
    852.40x = 1,301.38 × 1,301.38
  4. Step 4: Simplify right side
    852.40x = 1,693,587.06
  5. Step 5: Solve for x
    x = 1,693,587.06/852.40
  6. Step 6: Final answer
    x = 1,986.85

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.