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Finding the Fourth Proportional to 7,898.52, 11,849.60 and 4,204.31

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Solution

The fourth proportional to 7,898.52, 11,849.60 and 4,204.31 is: 6,307.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,898.52 : 11,849.60 = 4,204.31 : x
  2. Step 2: Convert to fraction form
    7,898.52/11,849.60 = 4,204.31/x
  3. Step 3: Cross multiply
    7,898.52x = 11,849.60 × 4,204.31
  4. Step 4: Simplify right side
    7,898.52x = 49,819,391.78
  5. Step 5: Solve for x
    x = 49,819,391.78/7,898.52
  6. Step 6: Final answer
    x = 6,307.43

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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.