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Finding the Fourth Proportional to 7,374.72, 11,049.12 and 5,283.84

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Solution

The fourth proportional to 7,374.72, 11,049.12 and 5,283.84 is: 7,916.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,374.72 : 11,049.12 = 5,283.84 : x
  2. Step 2: Convert to fraction form
    7,374.72/11,049.12 = 5,283.84/x
  3. Step 3: Cross multiply
    7,374.72x = 11,049.12 × 5,283.84
  4. Step 4: Simplify right side
    7,374.72x = 58,381,782.22
  5. Step 5: Solve for x
    x = 58,381,782.22/7,374.72
  6. Step 6: Final answer
    x = 7,916.47

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.