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Finding the Fourth Proportional to 18,326.59, 27,498.08 and 10,535.41

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Solution

The fourth proportional to 18,326.59, 27,498.08 and 10,535.41 is: 15,807.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,326.59 : 27,498.08 = 10,535.41 : x
  2. Step 2: Convert to fraction form
    18,326.59/27,498.08 = 10,535.41/x
  3. Step 3: Cross multiply
    18,326.59x = 27,498.08 × 10,535.41
  4. Step 4: Simplify right side
    18,326.59x = 289,703,356.85
  5. Step 5: Solve for x
    x = 289,703,356.85/18,326.59
  6. Step 6: Final answer
    x = 15,807.82

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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.