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Finding the Fourth Proportional to 56,046.62, 84,051.48 and 20,499.86

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Solution

The fourth proportional to 56,046.62, 84,051.48 and 20,499.86 is: 30,743.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,046.62 : 84,051.48 = 20,499.86 : x
  2. Step 2: Convert to fraction form
    56,046.62/84,051.48 = 20,499.86/x
  3. Step 3: Cross multiply
    56,046.62x = 84,051.48 × 20,499.86
  4. Step 4: Simplify right side
    56,046.62x = 1,723,043,572.79
  5. Step 5: Solve for x
    x = 1,723,043,572.79/56,046.62
  6. Step 6: Final answer
    x = 30,743.04

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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.