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Finding the Fourth Proportional to 57,353.95, 86,042.87 and 28,906.89

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Solution

The fourth proportional to 57,353.95, 86,042.87 and 28,906.89 is: 43,366.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,353.95 : 86,042.87 = 28,906.89 : x
  2. Step 2: Convert to fraction form
    57,353.95/86,042.87 = 28,906.89/x
  3. Step 3: Cross multiply
    57,353.95x = 86,042.87 × 28,906.89
  4. Step 4: Simplify right side
    57,353.95x = 2,487,231,778.37
  5. Step 5: Solve for x
    x = 2,487,231,778.37/57,353.95
  6. Step 6: Final answer
    x = 43,366.36

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1.5x scale

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.