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Finding the Fourth Proportional to 10,765.88, 16,147.00 and 2,974.72

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Solution

The fourth proportional to 10,765.88, 16,147.00 and 2,974.72 is: 4,461.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,765.88 : 16,147.00 = 2,974.72 : x
  2. Step 2: Convert to fraction form
    10,765.88/16,147.00 = 2,974.72/x
  3. Step 3: Cross multiply
    10,765.88x = 16,147.00 × 2,974.72
  4. Step 4: Simplify right side
    10,765.88x = 48,032,767.19
  5. Step 5: Solve for x
    x = 48,032,767.19/10,765.88
  6. Step 6: Final answer
    x = 4,461.57

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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.