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Finding the Third Proportional to 7,434.28 and 15,485.34

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Solution

The third proportional to 7,434.28 and 15,485.34 is: 32,255.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,434.28 : 15,485.34 = 15,485.34 : x
  2. Step 2: Convert to fraction form
    7,434.28/15,485.34 = 15,485.34/x
  3. Step 3: Cross multiply
    7,434.28x = 15,485.34 × 15,485.34
  4. Step 4: Simplify right side
    7,434.28x = 239,795,871.06
  5. Step 5: Solve for x
    x = 239,795,871.06/7,434.28
  6. Step 6: Final answer
    x = 32,255.42

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.