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Finding the Fourth Proportional to 13,608.83, 20,407.10 and 4,843.97

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Solution

The fourth proportional to 13,608.83, 20,407.10 and 4,843.97 is: 7,263.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,608.83 : 20,407.10 = 4,843.97 : x
  2. Step 2: Convert to fraction form
    13,608.83/20,407.10 = 4,843.97/x
  3. Step 3: Cross multiply
    13,608.83x = 20,407.10 × 4,843.97
  4. Step 4: Simplify right side
    13,608.83x = 98,851,380.19
  5. Step 5: Solve for x
    x = 98,851,380.19/13,608.83
  6. Step 6: Final answer
    x = 7,263.77

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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.