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Finding the Fourth Proportional to 14,053.80, 19,393.72 and 8,086.39

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Solution

The fourth proportional to 14,053.80, 19,393.72 and 8,086.39 is: 11,158.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,053.80 : 19,393.72 = 8,086.39 : x
  2. Step 2: Convert to fraction form
    14,053.80/19,393.72 = 8,086.39/x
  3. Step 3: Cross multiply
    14,053.80x = 19,393.72 × 8,086.39
  4. Step 4: Simplify right side
    14,053.80x = 156,825,183.47
  5. Step 5: Solve for x
    x = 156,825,183.47/14,053.80
  6. Step 6: Final answer
    x = 11,158.92

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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.