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Finding the Fourth Proportional to 9,357.73, 14,031.66 and 8,291.86

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Solution

The fourth proportional to 9,357.73, 14,031.66 and 8,291.86 is: 12,433.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,357.73 : 14,031.66 = 8,291.86 : x
  2. Step 2: Convert to fraction form
    9,357.73/14,031.66 = 8,291.86/x
  3. Step 3: Cross multiply
    9,357.73x = 14,031.66 × 8,291.86
  4. Step 4: Simplify right side
    9,357.73x = 116,348,560.29
  5. Step 5: Solve for x
    x = 116,348,560.29/9,357.73
  6. Step 6: Final answer
    x = 12,433.42

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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.