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Finding the Fourth Proportional to 19,057.26, 28,585.92 and 7,957.90

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Solution

The fourth proportional to 19,057.26, 28,585.92 and 7,957.90 is: 11,936.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,057.26 : 28,585.92 = 7,957.90 : x
  2. Step 2: Convert to fraction form
    19,057.26/28,585.92 = 7,957.90/x
  3. Step 3: Cross multiply
    19,057.26x = 28,585.92 × 7,957.90
  4. Step 4: Simplify right side
    19,057.26x = 227,483,892.77
  5. Step 5: Solve for x
    x = 227,483,892.77/19,057.26
  6. Step 6: Final answer
    x = 11,936.86

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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.