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Finding the Fourth Proportional to 26,798.99, 36,979.81 and 15,464.66

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Solution

The fourth proportional to 26,798.99, 36,979.81 and 15,464.66 is: 21,339.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,798.99 : 36,979.81 = 15,464.66 : x
  2. Step 2: Convert to fraction form
    26,798.99/36,979.81 = 15,464.66/x
  3. Step 3: Cross multiply
    26,798.99x = 36,979.81 × 15,464.66
  4. Step 4: Simplify right side
    26,798.99x = 571,879,964.95
  5. Step 5: Solve for x
    x = 571,879,964.95/26,798.99
  6. Step 6: Final answer
    x = 21,339.61

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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.