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Finding the Fourth Proportional to 19,235.70, 28,866.48 and 6,755.82

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Solution

The fourth proportional to 19,235.70, 28,866.48 and 6,755.82 is: 10,138.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,235.70 : 28,866.48 = 6,755.82 : x
  2. Step 2: Convert to fraction form
    19,235.70/28,866.48 = 6,755.82/x
  3. Step 3: Cross multiply
    19,235.70x = 28,866.48 × 6,755.82
  4. Step 4: Simplify right side
    19,235.70x = 195,016,742.91
  5. Step 5: Solve for x
    x = 195,016,742.91/19,235.70
  6. Step 6: Final answer
    x = 10,138.27

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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.