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Finding the Fourth Proportional to 57,689.89, 79,613.09 and 33,833.77

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Solution

The fourth proportional to 57,689.89, 79,613.09 and 33,833.77 is: 46,691.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,689.89 : 79,613.09 = 33,833.77 : x
  2. Step 2: Convert to fraction form
    57,689.89/79,613.09 = 33,833.77/x
  3. Step 3: Cross multiply
    57,689.89x = 79,613.09 × 33,833.77
  4. Step 4: Simplify right side
    57,689.89x = 2,693,610,806.88
  5. Step 5: Solve for x
    x = 2,693,610,806.88/57,689.89
  6. Step 6: Final answer
    x = 46,691.21

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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.