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Finding the Fourth Proportional to 18,440.14, 27,661.93 and 7,344.15

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Solution

The fourth proportional to 18,440.14, 27,661.93 and 7,344.15 is: 11,016.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,440.14 : 27,661.93 = 7,344.15 : x
  2. Step 2: Convert to fraction form
    18,440.14/27,661.93 = 7,344.15/x
  3. Step 3: Cross multiply
    18,440.14x = 27,661.93 × 7,344.15
  4. Step 4: Simplify right side
    18,440.14x = 203,153,363.21
  5. Step 5: Solve for x
    x = 203,153,363.21/18,440.14
  6. Step 6: Final answer
    x = 11,016.91

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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.