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Finding the Fourth Proportional to 19,292.34, 28,942.02 and 6,143.34

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Solution

The fourth proportional to 19,292.34, 28,942.02 and 6,143.34 is: 9,216.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,292.34 : 28,942.02 = 6,143.34 : x
  2. Step 2: Convert to fraction form
    19,292.34/28,942.02 = 6,143.34/x
  3. Step 3: Cross multiply
    19,292.34x = 28,942.02 × 6,143.34
  4. Step 4: Simplify right side
    19,292.34x = 177,800,669.15
  5. Step 5: Solve for x
    x = 177,800,669.15/19,292.34
  6. Step 6: Final answer
    x = 9,216.13

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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.