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Finding the Fourth Proportional to 52,802.70, 79,198.92 and 21,635.52

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Solution

The fourth proportional to 52,802.70, 79,198.92 and 21,635.52 is: 32,451.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,802.70 : 79,198.92 = 21,635.52 : x
  2. Step 2: Convert to fraction form
    52,802.70/79,198.92 = 21,635.52/x
  3. Step 3: Cross multiply
    52,802.70x = 79,198.92 × 21,635.52
  4. Step 4: Simplify right side
    52,802.70x = 1,713,509,817.64
  5. Step 5: Solve for x
    x = 1,713,509,817.64/52,802.70
  6. Step 6: Final answer
    x = 32,451.18

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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.