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Finding the Fourth Proportional to 57,003.92, 85,509.41 and 19,056.60

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Solution

The fourth proportional to 57,003.92, 85,509.41 and 19,056.60 is: 28,586.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,003.92 : 85,509.41 = 19,056.60 : x
  2. Step 2: Convert to fraction form
    57,003.92/85,509.41 = 19,056.60/x
  3. Step 3: Cross multiply
    57,003.92x = 85,509.41 × 19,056.60
  4. Step 4: Simplify right side
    57,003.92x = 1,629,518,622.61
  5. Step 5: Solve for x
    x = 1,629,518,622.61/57,003.92
  6. Step 6: Final answer
    x = 28,586.08

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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.