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Finding the Fourth Proportional to 55,773.60, 83,659.87 and 13,653.87

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Solution

The fourth proportional to 55,773.60, 83,659.87 and 13,653.87 is: 20,480.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,773.60 : 83,659.87 = 13,653.87 : x
  2. Step 2: Convert to fraction form
    55,773.60/83,659.87 = 13,653.87/x
  3. Step 3: Cross multiply
    55,773.60x = 83,659.87 × 13,653.87
  4. Step 4: Simplify right side
    55,773.60x = 1,142,280,989.20
  5. Step 5: Solve for x
    x = 1,142,280,989.20/55,773.60
  6. Step 6: Final answer
    x = 20,480.68

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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.