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Finding the Third Proportional to 970.73 and 2,131.31

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Solution

The third proportional to 970.73 and 2,131.31 is: 4,679.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    970.73 : 2,131.31 = 2,131.31 : x
  2. Step 2: Convert to fraction form
    970.73/2,131.31 = 2,131.31/x
  3. Step 3: Cross multiply
    970.73x = 2,131.31 × 2,131.31
  4. Step 4: Simplify right side
    970.73x = 4,542,492.97
  5. Step 5: Solve for x
    x = 4,542,492.97/970.73
  6. Step 6: Final answer
    x = 4,679.44

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.