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Finding the Fourth Proportional to 57,600.31, 79,471.87 and 37,486.80

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Solution

The fourth proportional to 57,600.31, 79,471.87 and 37,486.80 is: 51,721.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,600.31 : 79,471.87 = 37,486.80 : x
  2. Step 2: Convert to fraction form
    57,600.31/79,471.87 = 37,486.80/x
  3. Step 3: Cross multiply
    57,600.31x = 79,471.87 × 37,486.80
  4. Step 4: Simplify right side
    57,600.31x = 2,979,145,511.52
  5. Step 5: Solve for x
    x = 2,979,145,511.52/57,600.31
  6. Step 6: Final answer
    x = 51,721.00

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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.