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Finding the Fourth Proportional to 57,010.98, 85,516.65 and 33,621

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Solution

The fourth proportional to 57,010.98, 85,516.65 and 33,621 is: 50,431.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,010.98 : 85,516.65 = 33,621 : x
  2. Step 2: Convert to fraction form
    57,010.98/85,516.65 = 33,621/x
  3. Step 3: Cross multiply
    57,010.98x = 85,516.65 × 33,621
  4. Step 4: Simplify right side
    57,010.98x = 2,875,155,289.65
  5. Step 5: Solve for x
    x = 2,875,155,289.65/57,010.98
  6. Step 6: Final answer
    x = 50,431.61

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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.