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Finding the Fourth Proportional to 7,369.72, 11,065.66 and 6,340.92

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Solution

The fourth proportional to 7,369.72, 11,065.66 and 6,340.92 is: 9,520.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,369.72 : 11,065.66 = 6,340.92 : x
  2. Step 2: Convert to fraction form
    7,369.72/11,065.66 = 6,340.92/x
  3. Step 3: Cross multiply
    7,369.72x = 11,065.66 × 6,340.92
  4. Step 4: Simplify right side
    7,369.72x = 70,166,464.81
  5. Step 5: Solve for x
    x = 70,166,464.81/7,369.72
  6. Step 6: Final answer
    x = 9,520.91

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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.