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Finding the Fourth Proportional to 61,872.63, 85,384.26 and 33,578.31

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Solution

The fourth proportional to 61,872.63, 85,384.26 and 33,578.31 is: 46,338.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,872.63 : 85,384.26 = 33,578.31 : x
  2. Step 2: Convert to fraction form
    61,872.63/85,384.26 = 33,578.31/x
  3. Step 3: Cross multiply
    61,872.63x = 85,384.26 × 33,578.31
  4. Step 4: Simplify right side
    61,872.63x = 2,867,059,471.59
  5. Step 5: Solve for x
    x = 2,867,059,471.59/61,872.63
  6. Step 6: Final answer
    x = 46,338.09

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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.