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Finding the Fourth Proportional to 5,774.70, 8,640.43 and 4,112.67

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Solution

The fourth proportional to 5,774.70, 8,640.43 and 4,112.67 is: 6,153.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,774.70 : 8,640.43 = 4,112.67 : x
  2. Step 2: Convert to fraction form
    5,774.70/8,640.43 = 4,112.67/x
  3. Step 3: Cross multiply
    5,774.70x = 8,640.43 × 4,112.67
  4. Step 4: Simplify right side
    5,774.70x = 35,535,195.08
  5. Step 5: Solve for x
    x = 35,535,195.08/5,774.70
  6. Step 6: Final answer
    x = 6,153.60

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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.