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Finding the Fourth Proportional to 10,396.99, 15,601.63 and 3,827.79

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Solution

The fourth proportional to 10,396.99, 15,601.63 and 3,827.79 is: 5,743.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,396.99 : 15,601.63 = 3,827.79 : x
  2. Step 2: Convert to fraction form
    10,396.99/15,601.63 = 3,827.79/x
  3. Step 3: Cross multiply
    10,396.99x = 15,601.63 × 3,827.79
  4. Step 4: Simplify right side
    10,396.99x = 59,719,763.30
  5. Step 5: Solve for x
    x = 59,719,763.30/10,396.99
  6. Step 6: Final answer
    x = 5,743.95

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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.