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Finding the Fourth Proportional to 18,116.13, 27,173.64 and 7,442.11

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Solution

The fourth proportional to 18,116.13, 27,173.64 and 7,442.11 is: 11,162.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,116.13 : 27,173.64 = 7,442.11 : x
  2. Step 2: Convert to fraction form
    18,116.13/27,173.64 = 7,442.11/x
  3. Step 3: Cross multiply
    18,116.13x = 27,173.64 × 7,442.11
  4. Step 4: Simplify right side
    18,116.13x = 202,229,217.98
  5. Step 5: Solve for x
    x = 202,229,217.98/18,116.13
  6. Step 6: Final answer
    x = 11,162.94

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1.5x scale

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.