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Finding the Third Proportional to 979.59 and 1,512.84

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Solution

The third proportional to 979.59 and 1,512.84 is: 2,336.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    979.59 : 1,512.84 = 1,512.84 : x
  2. Step 2: Convert to fraction form
    979.59/1,512.84 = 1,512.84/x
  3. Step 3: Cross multiply
    979.59x = 1,512.84 × 1,512.84
  4. Step 4: Simplify right side
    979.59x = 2,288,696.21
  5. Step 5: Solve for x
    x = 2,288,696.21/979.59
  6. Step 6: Final answer
    x = 2,336.37

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.