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Finding the Fourth Proportional to 57,638.79, 79,553.90 and 36,404.55

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Solution

The fourth proportional to 57,638.79, 79,553.90 and 36,404.55 is: 50,246.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,638.79 : 79,553.90 = 36,404.55 : x
  2. Step 2: Convert to fraction form
    57,638.79/79,553.90 = 36,404.55/x
  3. Step 3: Cross multiply
    57,638.79x = 79,553.90 × 36,404.55
  4. Step 4: Simplify right side
    57,638.79x = 2,896,123,748.22
  5. Step 5: Solve for x
    x = 2,896,123,748.22/57,638.79
  6. Step 6: Final answer
    x = 50,246.09

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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.