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Finding the Fourth Proportional to 7,660.32, 11,495.04 and 7,174.40

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Solution

The fourth proportional to 7,660.32, 11,495.04 and 7,174.40 is: 10,765.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,660.32 : 11,495.04 = 7,174.40 : x
  2. Step 2: Convert to fraction form
    7,660.32/11,495.04 = 7,174.40/x
  3. Step 3: Cross multiply
    7,660.32x = 11,495.04 × 7,174.40
  4. Step 4: Simplify right side
    7,660.32x = 82,470,014.98
  5. Step 5: Solve for x
    x = 82,470,014.98/7,660.32
  6. Step 6: Final answer
    x = 10,765.87

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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.