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Finding the Fourth Proportional to 40,164.99, 55,414.13 and 23,168.82

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Solution

The fourth proportional to 40,164.99, 55,414.13 and 23,168.82 is: 31,965.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,164.99 : 55,414.13 = 23,168.82 : x
  2. Step 2: Convert to fraction form
    40,164.99/55,414.13 = 23,168.82/x
  3. Step 3: Cross multiply
    40,164.99x = 55,414.13 × 23,168.82
  4. Step 4: Simplify right side
    40,164.99x = 1,283,879,887.58
  5. Step 5: Solve for x
    x = 1,283,879,887.58/40,164.99
  6. Step 6: Final answer
    x = 31,965.15

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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.