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Finding the Fourth Proportional to 57,784.68, 86,688.90 and 26,179.56

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Solution

The fourth proportional to 57,784.68, 86,688.90 and 26,179.56 is: 39,274.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,784.68 : 86,688.90 = 26,179.56 : x
  2. Step 2: Convert to fraction form
    57,784.68/86,688.90 = 26,179.56/x
  3. Step 3: Cross multiply
    57,784.68x = 86,688.90 × 26,179.56
  4. Step 4: Simplify right side
    57,784.68x = 2,269,477,258.88
  5. Step 5: Solve for x
    x = 2,269,477,258.88/57,784.68
  6. Step 6: Final answer
    x = 39,274.72

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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.