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Finding the Fourth Proportional to 57,811.76, 79,793.08 and 35,145.94

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Solution

The fourth proportional to 57,811.76, 79,793.08 and 35,145.94 is: 48,509.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,811.76 : 79,793.08 = 35,145.94 : x
  2. Step 2: Convert to fraction form
    57,811.76/79,793.08 = 35,145.94/x
  3. Step 3: Cross multiply
    57,811.76x = 79,793.08 × 35,145.94
  4. Step 4: Simplify right side
    57,811.76x = 2,804,402,514.75
  5. Step 5: Solve for x
    x = 2,804,402,514.75/57,811.76
  6. Step 6: Final answer
    x = 48,509.21

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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.