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Finding the Fourth Proportional to 57,900.56, 86,957.84 and 34,669.76

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Solution

The fourth proportional to 57,900.56, 86,957.84 and 34,669.76 is: 52,068.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,900.56 : 86,957.84 = 34,669.76 : x
  2. Step 2: Convert to fraction form
    57,900.56/86,957.84 = 34,669.76/x
  3. Step 3: Cross multiply
    57,900.56x = 86,957.84 × 34,669.76
  4. Step 4: Simplify right side
    57,900.56x = 3,014,807,442.92
  5. Step 5: Solve for x
    x = 3,014,807,442.92/57,900.56
  6. Step 6: Final answer
    x = 52,068.71

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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.