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Finding the Fourth Proportional to 21,861.87, 32,794.61 and 7,073.16

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Solution

The fourth proportional to 21,861.87, 32,794.61 and 7,073.16 is: 10,610.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,861.87 : 32,794.61 = 7,073.16 : x
  2. Step 2: Convert to fraction form
    21,861.87/32,794.61 = 7,073.16/x
  3. Step 3: Cross multiply
    21,861.87x = 32,794.61 × 7,073.16
  4. Step 4: Simplify right side
    21,861.87x = 231,961,488.30
  5. Step 5: Solve for x
    x = 231,961,488.30/21,861.87
  6. Step 6: Final answer
    x = 10,610.32

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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.