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Finding the Fourth Proportional to 4,983.32, 6,879.94 and 4,429.79

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Solution

The fourth proportional to 4,983.32, 6,879.94 and 4,429.79 is: 6,115.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,983.32 : 6,879.94 = 4,429.79 : x
  2. Step 2: Convert to fraction form
    4,983.32/6,879.94 = 4,429.79/x
  3. Step 3: Cross multiply
    4,983.32x = 6,879.94 × 4,429.79
  4. Step 4: Simplify right side
    4,983.32x = 30,476,669.74
  5. Step 5: Solve for x
    x = 30,476,669.74/4,983.32
  6. Step 6: Final answer
    x = 6,115.73

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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.