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Finding the Fourth Proportional to 13,349.88, 20,023.20 and 3,488.94

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Solution

The fourth proportional to 13,349.88, 20,023.20 and 3,488.94 is: 5,232.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,349.88 : 20,023.20 = 3,488.94 : x
  2. Step 2: Convert to fraction form
    13,349.88/20,023.20 = 3,488.94/x
  3. Step 3: Cross multiply
    13,349.88x = 20,023.20 × 3,488.94
  4. Step 4: Simplify right side
    13,349.88x = 69,859,743.41
  5. Step 5: Solve for x
    x = 69,859,743.41/13,349.88
  6. Step 6: Final answer
    x = 5,232.99

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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.