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Finding the Fourth Proportional to 4,859.87, 7,274.72 and 3,927.65

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Solution

The fourth proportional to 4,859.87, 7,274.72 and 3,927.65 is: 5,879.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,859.87 : 7,274.72 = 3,927.65 : x
  2. Step 2: Convert to fraction form
    4,859.87/7,274.72 = 3,927.65/x
  3. Step 3: Cross multiply
    4,859.87x = 7,274.72 × 3,927.65
  4. Step 4: Simplify right side
    4,859.87x = 28,572,527.45
  5. Step 5: Solve for x
    x = 28,572,527.45/4,859.87
  6. Step 6: Final answer
    x = 5,879.28

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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.