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Finding the Fourth Proportional to 13,357.76, 20,035.11 and 3,497.99

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Solution

The fourth proportional to 13,357.76, 20,035.11 and 3,497.99 is: 5,246.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,357.76 : 20,035.11 = 3,497.99 : x
  2. Step 2: Convert to fraction form
    13,357.76/20,035.11 = 3,497.99/x
  3. Step 3: Cross multiply
    13,357.76x = 20,035.11 × 3,497.99
  4. Step 4: Simplify right side
    13,357.76x = 70,082,614.43
  5. Step 5: Solve for x
    x = 70,082,614.43/13,357.76
  6. Step 6: Final answer
    x = 5,246.58

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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.