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Finding the Fourth Proportional to 7,218.02, 9,960.80 and 4,233.29

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Solution

The fourth proportional to 7,218.02, 9,960.80 and 4,233.29 is: 5,841.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,218.02 : 9,960.80 = 4,233.29 : x
  2. Step 2: Convert to fraction form
    7,218.02/9,960.80 = 4,233.29/x
  3. Step 3: Cross multiply
    7,218.02x = 9,960.80 × 4,233.29
  4. Step 4: Simplify right side
    7,218.02x = 42,166,923.98
  5. Step 5: Solve for x
    x = 42,166,923.98/7,218.02
  6. Step 6: Final answer
    x = 5,841.89

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.