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Finding the Fourth Proportional to 13,843.25, 19,103.96 and 8,254.25

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Solution

The fourth proportional to 13,843.25, 19,103.96 and 8,254.25 is: 11,391.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,843.25 : 19,103.96 = 8,254.25 : x
  2. Step 2: Convert to fraction form
    13,843.25/19,103.96 = 8,254.25/x
  3. Step 3: Cross multiply
    13,843.25x = 19,103.96 × 8,254.25
  4. Step 4: Simplify right side
    13,843.25x = 157,688,861.83
  5. Step 5: Solve for x
    x = 157,688,861.83/13,843.25
  6. Step 6: Final answer
    x = 11,391.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.