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Finding the Fourth Proportional to 56,591.87, 84,835.04 and 19,125.75

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Solution

The fourth proportional to 56,591.87, 84,835.04 and 19,125.75 is: 28,670.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,591.87 : 84,835.04 = 19,125.75 : x
  2. Step 2: Convert to fraction form
    56,591.87/84,835.04 = 19,125.75/x
  3. Step 3: Cross multiply
    56,591.87x = 84,835.04 × 19,125.75
  4. Step 4: Simplify right side
    56,591.87x = 1,622,533,766.28
  5. Step 5: Solve for x
    x = 1,622,533,766.28/56,591.87
  6. Step 6: Final answer
    x = 28,670.79

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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.