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Finding the Fourth Proportional to 57,603.60, 86,385.60 and 28,002.36

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Solution

The fourth proportional to 57,603.60, 86,385.60 and 28,002.36 is: 41,993.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,603.60 : 86,385.60 = 28,002.36 : x
  2. Step 2: Convert to fraction form
    57,603.60/86,385.60 = 28,002.36/x
  3. Step 3: Cross multiply
    57,603.60x = 86,385.60 × 28,002.36
  4. Step 4: Simplify right side
    57,603.60x = 2,419,000,670.02
  5. Step 5: Solve for x
    x = 2,419,000,670.02/57,603.60
  6. Step 6: Final answer
    x = 41,993.91

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.