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Finding the Fourth Proportional to 7,410.74, 11,099.42 and 5,199.43

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Solution

The fourth proportional to 7,410.74, 11,099.42 and 5,199.43 is: 7,787.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,410.74 : 11,099.42 = 5,199.43 : x
  2. Step 2: Convert to fraction form
    7,410.74/11,099.42 = 5,199.43/x
  3. Step 3: Cross multiply
    7,410.74x = 11,099.42 × 5,199.43
  4. Step 4: Simplify right side
    7,410.74x = 57,710,689.73
  5. Step 5: Solve for x
    x = 57,710,689.73/7,410.74
  6. Step 6: Final answer
    x = 7,787.44

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1.5x scale

Why These Related Problems?

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