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Finding the Fourth Proportional to 19,472.68, 29,187.96 and 7,773.04

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Solution

The fourth proportional to 19,472.68, 29,187.96 and 7,773.04 is: 11,651.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,472.68 : 29,187.96 = 7,773.04 : x
  2. Step 2: Convert to fraction form
    19,472.68/29,187.96 = 7,773.04/x
  3. Step 3: Cross multiply
    19,472.68x = 29,187.96 × 7,773.04
  4. Step 4: Simplify right side
    19,472.68x = 226,879,180.60
  5. Step 5: Solve for x
    x = 226,879,180.60/19,472.68
  6. Step 6: Final answer
    x = 11,651.15

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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.