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Finding the Fourth Proportional to 24,409.80, 36,620.70 and 6,879.40

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Solution

The fourth proportional to 24,409.80, 36,620.70 and 6,879.40 is: 10,320.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,409.80 : 36,620.70 = 6,879.40 : x
  2. Step 2: Convert to fraction form
    24,409.80/36,620.70 = 6,879.40/x
  3. Step 3: Cross multiply
    24,409.80x = 36,620.70 × 6,879.40
  4. Step 4: Simplify right side
    24,409.80x = 251,928,443.58
  5. Step 5: Solve for x
    x = 251,928,443.58/24,409.80
  6. Step 6: Final answer
    x = 10,320.79

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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.