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Finding the Fourth Proportional to 9,375.12, 14,064.12 and 2,800.56

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Solution

The fourth proportional to 9,375.12, 14,064.12 and 2,800.56 is: 4,201.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,375.12 : 14,064.12 = 2,800.56 : x
  2. Step 2: Convert to fraction form
    9,375.12/14,064.12 = 2,800.56/x
  3. Step 3: Cross multiply
    9,375.12x = 14,064.12 × 2,800.56
  4. Step 4: Simplify right side
    9,375.12x = 39,387,411.91
  5. Step 5: Solve for x
    x = 39,387,411.91/9,375.12
  6. Step 6: Final answer
    x = 4,201.27

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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.