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Finding the Fourth Proportional to 6,367.87, 8,792.90 and 4,133.58

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Solution

The fourth proportional to 6,367.87, 8,792.90 and 4,133.58 is: 5,707.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,367.87 : 8,792.90 = 4,133.58 : x
  2. Step 2: Convert to fraction form
    6,367.87/8,792.90 = 4,133.58/x
  3. Step 3: Cross multiply
    6,367.87x = 8,792.90 × 4,133.58
  4. Step 4: Simplify right side
    6,367.87x = 36,346,190.15
  5. Step 5: Solve for x
    x = 36,346,190.15/6,367.87
  6. Step 6: Final answer
    x = 5,707.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.