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Finding the Third Proportional to 7,272.42 and 11,120.13

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Solution

The third proportional to 7,272.42 and 11,120.13 is: 17,003.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,272.42 : 11,120.13 = 11,120.13 : x
  2. Step 2: Convert to fraction form
    7,272.42/11,120.13 = 11,120.13/x
  3. Step 3: Cross multiply
    7,272.42x = 11,120.13 × 11,120.13
  4. Step 4: Simplify right side
    7,272.42x = 123,657,353.77
  5. Step 5: Solve for x
    x = 123,657,353.77/7,272.42
  6. Step 6: Final answer
    x = 17,003.60

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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.