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Finding the Fourth Proportional to 57,424.85, 86,154.74 and 29,364.60

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Solution

The fourth proportional to 57,424.85, 86,154.74 and 29,364.60 is: 44,055.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,424.85 : 86,154.74 = 29,364.60 : x
  2. Step 2: Convert to fraction form
    57,424.85/86,154.74 = 29,364.60/x
  3. Step 3: Cross multiply
    57,424.85x = 86,154.74 × 29,364.60
  4. Step 4: Simplify right side
    57,424.85x = 2,529,899,478.20
  5. Step 5: Solve for x
    x = 2,529,899,478.20/57,424.85
  6. Step 6: Final answer
    x = 44,055.83

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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.