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Finding the Fourth Proportional to 63,340.61, 95,022.41 and 21,216.56

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Solution

The fourth proportional to 63,340.61, 95,022.41 and 21,216.56 is: 31,828.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,340.61 : 95,022.41 = 21,216.56 : x
  2. Step 2: Convert to fraction form
    63,340.61/95,022.41 = 21,216.56/x
  3. Step 3: Cross multiply
    63,340.61x = 95,022.41 × 21,216.56
  4. Step 4: Simplify right side
    63,340.61x = 2,016,048,081.91
  5. Step 5: Solve for x
    x = 2,016,048,081.91/63,340.61
  6. Step 6: Final answer
    x = 31,828.68

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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.