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Finding the Fourth Proportional to 8,574.74, 11,841.57 and 5,928.98

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Solution

The fourth proportional to 8,574.74, 11,841.57 and 5,928.98 is: 8,187.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,574.74 : 11,841.57 = 5,928.98 : x
  2. Step 2: Convert to fraction form
    8,574.74/11,841.57 = 5,928.98/x
  3. Step 3: Cross multiply
    8,574.74x = 11,841.57 × 5,928.98
  4. Step 4: Simplify right side
    8,574.74x = 70,208,431.70
  5. Step 5: Solve for x
    x = 70,208,431.70/8,574.74
  6. Step 6: Final answer
    x = 8,187.82

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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.