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Finding the Fourth Proportional to 57,887.52, 79,874.64 and 35,538.72

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Solution

The fourth proportional to 57,887.52, 79,874.64 and 35,538.72 is: 49,037.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,887.52 : 79,874.64 = 35,538.72 : x
  2. Step 2: Convert to fraction form
    57,887.52/79,874.64 = 35,538.72/x
  3. Step 3: Cross multiply
    57,887.52x = 79,874.64 × 35,538.72
  4. Step 4: Simplify right side
    57,887.52x = 2,838,642,466.06
  5. Step 5: Solve for x
    x = 2,838,642,466.06/57,887.52
  6. Step 6: Final answer
    x = 49,037.21

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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.