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Finding the Fourth Proportional to 69,476.61, 95,879.51 and 42,633.95

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Solution

The fourth proportional to 69,476.61, 95,879.51 and 42,633.95 is: 58,835.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,476.61 : 95,879.51 = 42,633.95 : x
  2. Step 2: Convert to fraction form
    69,476.61/95,879.51 = 42,633.95/x
  3. Step 3: Cross multiply
    69,476.61x = 95,879.51 × 42,633.95
  4. Step 4: Simplify right side
    69,476.61x = 4,087,722,235.36
  5. Step 5: Solve for x
    x = 4,087,722,235.36/69,476.61
  6. Step 6: Final answer
    x = 58,835.95

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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.