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Finding the Fourth Proportional to 5,747.40, 8,601.90 and 4,019.40

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Solution

The fourth proportional to 5,747.40, 8,601.90 and 4,019.40 is: 6,015.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,747.40 : 8,601.90 = 4,019.40 : x
  2. Step 2: Convert to fraction form
    5,747.40/8,601.90 = 4,019.40/x
  3. Step 3: Cross multiply
    5,747.40x = 8,601.90 × 4,019.40
  4. Step 4: Simplify right side
    5,747.40x = 34,574,476.86
  5. Step 5: Solve for x
    x = 34,574,476.86/5,747.40
  6. Step 6: Final answer
    x = 6,015.67

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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.