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Finding the Fourth Proportional to 13,494.71, 20,243.42 and 4,134.62

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Solution

The fourth proportional to 13,494.71, 20,243.42 and 4,134.62 is: 6,202.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,494.71 : 20,243.42 = 4,134.62 : x
  2. Step 2: Convert to fraction form
    13,494.71/20,243.42 = 4,134.62/x
  3. Step 3: Cross multiply
    13,494.71x = 20,243.42 × 4,134.62
  4. Step 4: Simplify right side
    13,494.71x = 83,698,849.20
  5. Step 5: Solve for x
    x = 83,698,849.20/13,494.71
  6. Step 6: Final answer
    x = 6,202.35

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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.