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Finding the Fourth Proportional to 8,797.95, 12,137.83 and 5,439.69

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Solution

The fourth proportional to 8,797.95, 12,137.83 and 5,439.69 is: 7,504.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,797.95 : 12,137.83 = 5,439.69 : x
  2. Step 2: Convert to fraction form
    8,797.95/12,137.83 = 5,439.69/x
  3. Step 3: Cross multiply
    8,797.95x = 12,137.83 × 5,439.69
  4. Step 4: Simplify right side
    8,797.95x = 66,026,032.47
  5. Step 5: Solve for x
    x = 66,026,032.47/8,797.95
  6. Step 6: Final answer
    x = 7,504.71

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Half scale
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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.