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Finding the Fourth Proportional to 7,099.46, 9,797.52 and 3,955.85

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Solution

The fourth proportional to 7,099.46, 9,797.52 and 3,955.85 is: 5,459.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,099.46 : 9,797.52 = 3,955.85 : x
  2. Step 2: Convert to fraction form
    7,099.46/9,797.52 = 3,955.85/x
  3. Step 3: Cross multiply
    7,099.46x = 9,797.52 × 3,955.85
  4. Step 4: Simplify right side
    7,099.46x = 38,757,470.50
  5. Step 5: Solve for x
    x = 38,757,470.50/7,099.46
  6. Step 6: Final answer
    x = 5,459.22

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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.