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Finding the Fourth Proportional to 5,197.94, 7,798.72 and 2,697.92

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Solution

The fourth proportional to 5,197.94, 7,798.72 and 2,697.92 is: 4,047.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,197.94 : 7,798.72 = 2,697.92 : x
  2. Step 2: Convert to fraction form
    5,197.94/7,798.72 = 2,697.92/x
  3. Step 3: Cross multiply
    5,197.94x = 7,798.72 × 2,697.92
  4. Step 4: Simplify right side
    5,197.94x = 21,040,322.66
  5. Step 5: Solve for x
    x = 21,040,322.66/5,197.94
  6. Step 6: Final answer
    x = 4,047.82

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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.