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Finding the Fourth Proportional to 9,128.52, 13,692.74 and 2,203

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Solution

The fourth proportional to 9,128.52, 13,692.74 and 2,203 is: 3,304.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,128.52 : 13,692.74 = 2,203 : x
  2. Step 2: Convert to fraction form
    9,128.52/13,692.74 = 2,203/x
  3. Step 3: Cross multiply
    9,128.52x = 13,692.74 × 2,203
  4. Step 4: Simplify right side
    9,128.52x = 30,165,106.22
  5. Step 5: Solve for x
    x = 30,165,106.22/9,128.52
  6. Step 6: Final answer
    x = 3,304.49

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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.