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Finding the Fourth Proportional to 7,092.36, 10,638.24 and 2,931.24

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Solution

The fourth proportional to 7,092.36, 10,638.24 and 2,931.24 is: 4,396.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,092.36 : 10,638.24 = 2,931.24 : x
  2. Step 2: Convert to fraction form
    7,092.36/10,638.24 = 2,931.24/x
  3. Step 3: Cross multiply
    7,092.36x = 10,638.24 × 2,931.24
  4. Step 4: Simplify right side
    7,092.36x = 31,183,234.62
  5. Step 5: Solve for x
    x = 31,183,234.62/7,092.36
  6. Step 6: Final answer
    x = 4,396.74

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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.