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Finding the Fourth Proportional to 57,338.82, 79,124.88 and 31,846.83

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Solution

The fourth proportional to 57,338.82, 79,124.88 and 31,846.83 is: 43,947.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,338.82 : 79,124.88 = 31,846.83 : x
  2. Step 2: Convert to fraction form
    57,338.82/79,124.88 = 31,846.83/x
  3. Step 3: Cross multiply
    57,338.82x = 79,124.88 × 31,846.83
  4. Step 4: Simplify right side
    57,338.82x = 2,519,876,602.13
  5. Step 5: Solve for x
    x = 2,519,876,602.13/57,338.82
  6. Step 6: Final answer
    x = 43,947.13

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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.