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Finding the Fourth Proportional to 13,601.89, 20,404.89 and 4,834.72

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Solution

The fourth proportional to 13,601.89, 20,404.89 and 4,834.72 is: 7,252.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,601.89 : 20,404.89 = 4,834.72 : x
  2. Step 2: Convert to fraction form
    13,601.89/20,404.89 = 4,834.72/x
  3. Step 3: Cross multiply
    13,601.89x = 20,404.89 × 4,834.72
  4. Step 4: Simplify right side
    13,601.89x = 98,651,929.78
  5. Step 5: Solve for x
    x = 98,651,929.78/13,601.89
  6. Step 6: Final answer
    x = 7,252.81

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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.