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Finding the Fourth Proportional to 19,391.67, 29,087.51 and 5,540.67

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Solution

The fourth proportional to 19,391.67, 29,087.51 and 5,540.67 is: 8,311.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,391.67 : 29,087.51 = 5,540.67 : x
  2. Step 2: Convert to fraction form
    19,391.67/29,087.51 = 5,540.67/x
  3. Step 3: Cross multiply
    19,391.67x = 29,087.51 × 5,540.67
  4. Step 4: Simplify right side
    19,391.67x = 161,164,266.33
  5. Step 5: Solve for x
    x = 161,164,266.33/19,391.67
  6. Step 6: Final answer
    x = 8,311.01

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Similar ratio
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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.