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Finding the Fourth Proportional to 57,296.92, 79,068.80 and 31,803.24

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Solution

The fourth proportional to 57,296.92, 79,068.80 and 31,803.24 is: 43,887.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,296.92 : 79,068.80 = 31,803.24 : x
  2. Step 2: Convert to fraction form
    57,296.92/79,068.80 = 31,803.24/x
  3. Step 3: Cross multiply
    57,296.92x = 79,068.80 × 31,803.24
  4. Step 4: Simplify right side
    57,296.92x = 2,514,644,022.91
  5. Step 5: Solve for x
    x = 2,514,644,022.91/57,296.92
  6. Step 6: Final answer
    x = 43,887.94

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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.