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Finding the Fourth Proportional to 18,271.17, 27,409.62 and 7,741.22

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Solution

The fourth proportional to 18,271.17, 27,409.62 and 7,741.22 is: 11,613.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,271.17 : 27,409.62 = 7,741.22 : x
  2. Step 2: Convert to fraction form
    18,271.17/27,409.62 = 7,741.22/x
  3. Step 3: Cross multiply
    18,271.17x = 27,409.62 × 7,741.22
  4. Step 4: Simplify right side
    18,271.17x = 212,183,761.49
  5. Step 5: Solve for x
    x = 212,183,761.49/18,271.17
  6. Step 6: Final answer
    x = 11,613.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.