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Finding the Fourth Proportional to 7,574.58, 11,364.19 and 3,879.43

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Solution

The fourth proportional to 7,574.58, 11,364.19 and 3,879.43 is: 5,820.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,574.58 : 11,364.19 = 3,879.43 : x
  2. Step 2: Convert to fraction form
    7,574.58/11,364.19 = 3,879.43/x
  3. Step 3: Cross multiply
    7,574.58x = 11,364.19 × 3,879.43
  4. Step 4: Simplify right side
    7,574.58x = 44,086,541.50
  5. Step 5: Solve for x
    x = 44,086,541.50/7,574.58
  6. Step 6: Final answer
    x = 5,820.33

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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.