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Finding the Fourth Proportional to 57,039.58, 85,558.83 and 15,486.58

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Solution

The fourth proportional to 57,039.58, 85,558.83 and 15,486.58 is: 23,229.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,039.58 : 85,558.83 = 15,486.58 : x
  2. Step 2: Convert to fraction form
    57,039.58/85,558.83 = 15,486.58/x
  3. Step 3: Cross multiply
    57,039.58x = 85,558.83 × 15,486.58
  4. Step 4: Simplify right side
    57,039.58x = 1,325,013,665.50
  5. Step 5: Solve for x
    x = 1,325,013,665.50/57,039.58
  6. Step 6: Final answer
    x = 23,229.72

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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.