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Finding the Fourth Proportional to 9,022.40, 12,450.80 and 5,043.40

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Solution

The fourth proportional to 9,022.40, 12,450.80 and 5,043.40 is: 6,959.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,022.40 : 12,450.80 = 5,043.40 : x
  2. Step 2: Convert to fraction form
    9,022.40/12,450.80 = 5,043.40/x
  3. Step 3: Cross multiply
    9,022.40x = 12,450.80 × 5,043.40
  4. Step 4: Simplify right side
    9,022.40x = 62,794,364.72
  5. Step 5: Solve for x
    x = 62,794,364.72/9,022.40
  6. Step 6: Final answer
    x = 6,959.83

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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.