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Finding the Fourth Proportional to 13,793.65, 20,699.03 and 7,224.55

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Solution

The fourth proportional to 13,793.65, 20,699.03 and 7,224.55 is: 10,841.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,793.65 : 20,699.03 = 7,224.55 : x
  2. Step 2: Convert to fraction form
    13,793.65/20,699.03 = 7,224.55/x
  3. Step 3: Cross multiply
    13,793.65x = 20,699.03 × 7,224.55
  4. Step 4: Simplify right side
    13,793.65x = 149,541,141.06
  5. Step 5: Solve for x
    x = 149,541,141.06/13,793.65
  6. Step 6: Final answer
    x = 10,841.30

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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.