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Finding the Fourth Proportional to 57,800.55, 79,669.26 and 38,673.42

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Solution

The fourth proportional to 57,800.55, 79,669.26 and 38,673.42 is: 53,305.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,800.55 : 79,669.26 = 38,673.42 : x
  2. Step 2: Convert to fraction form
    57,800.55/79,669.26 = 38,673.42/x
  3. Step 3: Cross multiply
    57,800.55x = 79,669.26 × 38,673.42
  4. Step 4: Simplify right side
    57,800.55x = 3,081,082,753.07
  5. Step 5: Solve for x
    x = 3,081,082,753.07/57,800.55
  6. Step 6: Final answer
    x = 53,305.42

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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.