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Finding the Third Proportional to 1,520.34 and 3,275.16

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Solution

The third proportional to 1,520.34 and 3,275.16 is: 7,055.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520.34 : 3,275.16 = 3,275.16 : x
  2. Step 2: Convert to fraction form
    1,520.34/3,275.16 = 3,275.16/x
  3. Step 3: Cross multiply
    1,520.34x = 3,275.16 × 3,275.16
  4. Step 4: Simplify right side
    1,520.34x = 10,726,648.46
  5. Step 5: Solve for x
    x = 10,726,648.46/1,520.34
  6. Step 6: Final answer
    x = 7,055.41

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.