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Finding the Fourth Proportional to 9,615.91, 14,425.12 and 3,375.47

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Solution

The fourth proportional to 9,615.91, 14,425.12 and 3,375.47 is: 5,063.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,615.91 : 14,425.12 = 3,375.47 : x
  2. Step 2: Convert to fraction form
    9,615.91/14,425.12 = 3,375.47/x
  3. Step 3: Cross multiply
    9,615.91x = 14,425.12 × 3,375.47
  4. Step 4: Simplify right side
    9,615.91x = 48,691,559.81
  5. Step 5: Solve for x
    x = 48,691,559.81/9,615.91
  6. Step 6: Final answer
    x = 5,063.65

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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.