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Finding the Fourth Proportional to 10,859.81, 14,986.83 and 6,079.73

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Solution

The fourth proportional to 10,859.81, 14,986.83 and 6,079.73 is: 8,390.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,859.81 : 14,986.83 = 6,079.73 : x
  2. Step 2: Convert to fraction form
    10,859.81/14,986.83 = 6,079.73/x
  3. Step 3: Cross multiply
    10,859.81x = 14,986.83 × 6,079.73
  4. Step 4: Simplify right side
    10,859.81x = 91,115,879.96
  5. Step 5: Solve for x
    x = 91,115,879.96/10,859.81
  6. Step 6: Final answer
    x = 8,390.19

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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.