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Finding the Fourth Proportional to 4,879.74, 6,717.74 and 4,281.05

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Solution

The fourth proportional to 4,879.74, 6,717.74 and 4,281.05 is: 5,893.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,879.74 : 6,717.74 = 4,281.05 : x
  2. Step 2: Convert to fraction form
    4,879.74/6,717.74 = 4,281.05/x
  3. Step 3: Cross multiply
    4,879.74x = 6,717.74 × 4,281.05
  4. Step 4: Simplify right side
    4,879.74x = 28,758,976.22
  5. Step 5: Solve for x
    x = 28,758,976.22/4,879.74
  6. Step 6: Final answer
    x = 5,893.54

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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.