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Finding the Fourth Proportional to 57,039.49, 85,558.92 and 15,486.49

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Solution

The fourth proportional to 57,039.49, 85,558.92 and 15,486.49 is: 23,229.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,039.49 : 85,558.92 = 15,486.49 : x
  2. Step 2: Convert to fraction form
    57,039.49/85,558.92 = 15,486.49/x
  3. Step 3: Cross multiply
    57,039.49x = 85,558.92 × 15,486.49
  4. Step 4: Simplify right side
    57,039.49x = 1,325,007,358.99
  5. Step 5: Solve for x
    x = 1,325,007,358.99/57,039.49
  6. Step 6: Final answer
    x = 23,229.65

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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.