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Finding the Fourth Proportional to 26,118.71, 36,043.81 and 14,940.71

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Solution

The fourth proportional to 26,118.71, 36,043.81 and 14,940.71 is: 20,618.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,118.71 : 36,043.81 = 14,940.71 : x
  2. Step 2: Convert to fraction form
    26,118.71/36,043.81 = 14,940.71/x
  3. Step 3: Cross multiply
    26,118.71x = 36,043.81 × 14,940.71
  4. Step 4: Simplify right side
    26,118.71x = 538,519,932.29
  5. Step 5: Solve for x
    x = 538,519,932.29/26,118.71
  6. Step 6: Final answer
    x = 20,618.17

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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.