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Finding the Fourth Proportional to 9,879.82, 13,633.95 and 5,900.92

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Solution

The fourth proportional to 9,879.82, 13,633.95 and 5,900.92 is: 8,143.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,879.82 : 13,633.95 = 5,900.92 : x
  2. Step 2: Convert to fraction form
    9,879.82/13,633.95 = 5,900.92/x
  3. Step 3: Cross multiply
    9,879.82x = 13,633.95 × 5,900.92
  4. Step 4: Simplify right side
    9,879.82x = 80,452,848.23
  5. Step 5: Solve for x
    x = 80,452,848.23/9,879.82
  6. Step 6: Final answer
    x = 8,143.15

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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.