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Finding the Fourth Proportional to 7,770.02, 10,723.70 and 4,414.20

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Solution

The fourth proportional to 7,770.02, 10,723.70 and 4,414.20 is: 6,092.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,770.02 : 10,723.70 = 4,414.20 : x
  2. Step 2: Convert to fraction form
    7,770.02/10,723.70 = 4,414.20/x
  3. Step 3: Cross multiply
    7,770.02x = 10,723.70 × 4,414.20
  4. Step 4: Simplify right side
    7,770.02x = 47,336,556.54
  5. Step 5: Solve for x
    x = 47,336,556.54/7,770.02
  6. Step 6: Final answer
    x = 6,092.21

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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.