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Finding the Fourth Proportional to 32,764.88, 49,147.32 and 8,140.88

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Solution

The fourth proportional to 32,764.88, 49,147.32 and 8,140.88 is: 12,211.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,764.88 : 49,147.32 = 8,140.88 : x
  2. Step 2: Convert to fraction form
    32,764.88/49,147.32 = 8,140.88/x
  3. Step 3: Cross multiply
    32,764.88x = 49,147.32 × 8,140.88
  4. Step 4: Simplify right side
    32,764.88x = 400,102,188.71
  5. Step 5: Solve for x
    x = 400,102,188.71/32,764.88
  6. Step 6: Final answer
    x = 12,211.31

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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.