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Finding the Fourth Proportional to 32,656.56, 48,979.32 and 12,663.12

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Solution

The fourth proportional to 32,656.56, 48,979.32 and 12,663.12 is: 18,992.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,656.56 : 48,979.32 = 12,663.12 : x
  2. Step 2: Convert to fraction form
    32,656.56/48,979.32 = 12,663.12/x
  3. Step 3: Cross multiply
    32,656.56x = 48,979.32 × 12,663.12
  4. Step 4: Simplify right side
    32,656.56x = 620,231,006.68
  5. Step 5: Solve for x
    x = 620,231,006.68/32,656.56
  6. Step 6: Final answer
    x = 18,992.54

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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.