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Finding the Fourth Proportional to 57,216.60, 85,834.84 and 19,262.26

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Solution

The fourth proportional to 57,216.60, 85,834.84 and 19,262.26 is: 28,896.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,216.60 : 85,834.84 = 19,262.26 : x
  2. Step 2: Convert to fraction form
    57,216.60/85,834.84 = 19,262.26/x
  3. Step 3: Cross multiply
    57,216.60x = 85,834.84 × 19,262.26
  4. Step 4: Simplify right side
    57,216.60x = 1,653,373,005.14
  5. Step 5: Solve for x
    x = 1,653,373,005.14/57,216.60
  6. Step 6: Final answer
    x = 28,896.74

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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.