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Finding the Fourth Proportional to 32,379.44, 48,581.40 and 12,672.08

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Solution

The fourth proportional to 32,379.44, 48,581.40 and 12,672.08 is: 19,012.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,379.44 : 48,581.40 = 12,672.08 : x
  2. Step 2: Convert to fraction form
    32,379.44/48,581.40 = 12,672.08/x
  3. Step 3: Cross multiply
    32,379.44x = 48,581.40 × 12,672.08
  4. Step 4: Simplify right side
    32,379.44x = 615,627,387.31
  5. Step 5: Solve for x
    x = 615,627,387.31/32,379.44
  6. Step 6: Final answer
    x = 19,012.91

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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.