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Finding the Fourth Proportional to 8,879.45, 13,318.65 and 3,332.33

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Solution

The fourth proportional to 8,879.45, 13,318.65 and 3,332.33 is: 4,998.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,879.45 : 13,318.65 = 3,332.33 : x
  2. Step 2: Convert to fraction form
    8,879.45/13,318.65 = 3,332.33/x
  3. Step 3: Cross multiply
    8,879.45x = 13,318.65 × 3,332.33
  4. Step 4: Simplify right side
    8,879.45x = 44,382,070.36
  5. Step 5: Solve for x
    x = 44,382,070.36/8,879.45
  6. Step 6: Final answer
    x = 4,998.29

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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.