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Finding the Fourth Proportional to 9,383.76, 14,077.50 and 2,809.44

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Solution

The fourth proportional to 9,383.76, 14,077.50 and 2,809.44 is: 4,214.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,383.76 : 14,077.50 = 2,809.44 : x
  2. Step 2: Convert to fraction form
    9,383.76/14,077.50 = 2,809.44/x
  3. Step 3: Cross multiply
    9,383.76x = 14,077.50 × 2,809.44
  4. Step 4: Simplify right side
    9,383.76x = 39,549,891.60
  5. Step 5: Solve for x
    x = 39,549,891.60/9,383.76
  6. Step 6: Final answer
    x = 4,214.72

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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.