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Finding the Fourth Proportional to 18,466.14, 27,700.02 and 5,318.22

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Solution

The fourth proportional to 18,466.14, 27,700.02 and 5,318.22 is: 7,977.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,466.14 : 27,700.02 = 5,318.22 : x
  2. Step 2: Convert to fraction form
    18,466.14/27,700.02 = 5,318.22/x
  3. Step 3: Cross multiply
    18,466.14x = 27,700.02 × 5,318.22
  4. Step 4: Simplify right side
    18,466.14x = 147,314,800.36
  5. Step 5: Solve for x
    x = 147,314,800.36/18,466.14
  6. Step 6: Final answer
    x = 7,977.56

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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.