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Finding the Fourth Proportional to 8,927.72, 13,390.05 and 2,353.97

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Solution

The fourth proportional to 8,927.72, 13,390.05 and 2,353.97 is: 3,530.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,927.72 : 13,390.05 = 2,353.97 : x
  2. Step 2: Convert to fraction form
    8,927.72/13,390.05 = 2,353.97/x
  3. Step 3: Cross multiply
    8,927.72x = 13,390.05 × 2,353.97
  4. Step 4: Simplify right side
    8,927.72x = 31,519,709.05
  5. Step 5: Solve for x
    x = 31,519,709.05/8,927.72
  6. Step 6: Final answer
    x = 3,530.55

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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.