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Finding the Fourth Proportional to 7,197.06, 9,903.15 and 5,517.84

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Solution

The fourth proportional to 7,197.06, 9,903.15 and 5,517.84 is: 7,592.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,197.06 : 9,903.15 = 5,517.84 : x
  2. Step 2: Convert to fraction form
    7,197.06/9,903.15 = 5,517.84/x
  3. Step 3: Cross multiply
    7,197.06x = 9,903.15 × 5,517.84
  4. Step 4: Simplify right side
    7,197.06x = 54,643,997.20
  5. Step 5: Solve for x
    x = 54,643,997.20/7,197.06
  6. Step 6: Final answer
    x = 7,592.54

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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.