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Finding the Fourth Proportional to 19,046.54, 28,569.51 and 5,195.54

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Solution

The fourth proportional to 19,046.54, 28,569.51 and 5,195.54 is: 7,793.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,046.54 : 28,569.51 = 5,195.54 : x
  2. Step 2: Convert to fraction form
    19,046.54/28,569.51 = 5,195.54/x
  3. Step 3: Cross multiply
    19,046.54x = 28,569.51 × 5,195.54
  4. Step 4: Simplify right side
    19,046.54x = 148,434,103.41
  5. Step 5: Solve for x
    x = 148,434,103.41/19,046.54
  6. Step 6: Final answer
    x = 7,793.23

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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.