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Finding the Fourth Proportional to 7,351.92, 11,025.72 and 7,277.40

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Solution

The fourth proportional to 7,351.92, 11,025.72 and 7,277.40 is: 10,913.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,351.92 : 11,025.72 = 7,277.40 : x
  2. Step 2: Convert to fraction form
    7,351.92/11,025.72 = 7,277.40/x
  3. Step 3: Cross multiply
    7,351.92x = 11,025.72 × 7,277.40
  4. Step 4: Simplify right side
    7,351.92x = 80,238,574.73
  5. Step 5: Solve for x
    x = 80,238,574.73/7,351.92
  6. Step 6: Final answer
    x = 10,913.96

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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.