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Finding the Fourth Proportional to 7,202.66, 9,942.14 and 4,219.49

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Solution

The fourth proportional to 7,202.66, 9,942.14 and 4,219.49 is: 5,824.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,202.66 : 9,942.14 = 4,219.49 : x
  2. Step 2: Convert to fraction form
    7,202.66/9,942.14 = 4,219.49/x
  3. Step 3: Cross multiply
    7,202.66x = 9,942.14 × 4,219.49
  4. Step 4: Simplify right side
    7,202.66x = 41,950,795.71
  5. Step 5: Solve for x
    x = 41,950,795.71/7,202.66
  6. Step 6: Final answer
    x = 5,824.35

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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.