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Finding the Fourth Proportional to 7,991.41, 12,006.94 and 5,182.03

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Solution

The fourth proportional to 7,991.41, 12,006.94 and 5,182.03 is: 7,785.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,991.41 : 12,006.94 = 5,182.03 : x
  2. Step 2: Convert to fraction form
    7,991.41/12,006.94 = 5,182.03/x
  3. Step 3: Cross multiply
    7,991.41x = 12,006.94 × 5,182.03
  4. Step 4: Simplify right side
    7,991.41x = 62,220,323.29
  5. Step 5: Solve for x
    x = 62,220,323.29/7,991.41
  6. Step 6: Final answer
    x = 7,785.90

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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.