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Finding the Fourth Proportional to 7,576.74, 10,454.13 and 4,431.78

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Solution

The fourth proportional to 7,576.74, 10,454.13 and 4,431.78 is: 6,114.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,576.74 : 10,454.13 = 4,431.78 : x
  2. Step 2: Convert to fraction form
    7,576.74/10,454.13 = 4,431.78/x
  3. Step 3: Cross multiply
    7,576.74x = 10,454.13 × 4,431.78
  4. Step 4: Simplify right side
    7,576.74x = 46,330,404.25
  5. Step 5: Solve for x
    x = 46,330,404.25/7,576.74
  6. Step 6: Final answer
    x = 6,114.82

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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.