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Finding the Fourth Proportional to 7,073.63, 9,761.60 and 3,930.11

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Solution

The fourth proportional to 7,073.63, 9,761.60 and 3,930.11 is: 5,423.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,073.63 : 9,761.60 = 3,930.11 : x
  2. Step 2: Convert to fraction form
    7,073.63/9,761.60 = 3,930.11/x
  3. Step 3: Cross multiply
    7,073.63x = 9,761.60 × 3,930.11
  4. Step 4: Simplify right side
    7,073.63x = 38,364,161.78
  5. Step 5: Solve for x
    x = 38,364,161.78/7,073.63
  6. Step 6: Final answer
    x = 5,423.55

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.