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Finding the Fourth Proportional to 12,495.46, 18,741.95 and 3,261.46

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Solution

The fourth proportional to 12,495.46, 18,741.95 and 3,261.46 is: 4,891.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,495.46 : 18,741.95 = 3,261.46 : x
  2. Step 2: Convert to fraction form
    12,495.46/18,741.95 = 3,261.46/x
  3. Step 3: Cross multiply
    12,495.46x = 18,741.95 × 3,261.46
  4. Step 4: Simplify right side
    12,495.46x = 61,126,120.25
  5. Step 5: Solve for x
    x = 61,126,120.25/12,495.46
  6. Step 6: Final answer
    x = 4,891.87

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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.