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Finding the Fourth Proportional to 5,216.70, 7,200.18 and 3,448.47

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Solution

The fourth proportional to 5,216.70, 7,200.18 and 3,448.47 is: 4,759.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,216.70 : 7,200.18 = 3,448.47 : x
  2. Step 2: Convert to fraction form
    5,216.70/7,200.18 = 3,448.47/x
  3. Step 3: Cross multiply
    5,216.70x = 7,200.18 × 3,448.47
  4. Step 4: Simplify right side
    5,216.70x = 24,829,604.72
  5. Step 5: Solve for x
    x = 24,829,604.72/5,216.70
  6. Step 6: Final answer
    x = 4,759.64

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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.