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Finding the Fourth Proportional to 18,040.62, 27,059.85 and 7,507.98

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Solution

The fourth proportional to 18,040.62, 27,059.85 and 7,507.98 is: 11,261.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,040.62 : 27,059.85 = 7,507.98 : x
  2. Step 2: Convert to fraction form
    18,040.62/27,059.85 = 7,507.98/x
  3. Step 3: Cross multiply
    18,040.62x = 27,059.85 × 7,507.98
  4. Step 4: Simplify right side
    18,040.62x = 203,164,812.60
  5. Step 5: Solve for x
    x = 203,164,812.60/18,040.62
  6. Step 6: Final answer
    x = 11,261.52

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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.