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Finding the Fourth Proportional to 62,099.78, 85,754.63 and 39,446.07

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Solution

The fourth proportional to 62,099.78, 85,754.63 and 39,446.07 is: 54,471.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,099.78 : 85,754.63 = 39,446.07 : x
  2. Step 2: Convert to fraction form
    62,099.78/85,754.63 = 39,446.07/x
  3. Step 3: Cross multiply
    62,099.78x = 85,754.63 × 39,446.07
  4. Step 4: Simplify right side
    62,099.78x = 3,382,682,940.57
  5. Step 5: Solve for x
    x = 3,382,682,940.57/62,099.78
  6. Step 6: Final answer
    x = 54,471.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.