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Finding the Fourth Proportional to 57,719.50, 79,666.17 and 33,853.86

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Solution

The fourth proportional to 57,719.50, 79,666.17 and 33,853.86 is: 46,726.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,719.50 : 79,666.17 = 33,853.86 : x
  2. Step 2: Convert to fraction form
    57,719.50/79,666.17 = 33,853.86/x
  3. Step 3: Cross multiply
    57,719.50x = 79,666.17 × 33,853.86
  4. Step 4: Simplify right side
    57,719.50x = 2,697,007,365.92
  5. Step 5: Solve for x
    x = 2,697,007,365.92/57,719.50
  6. Step 6: Final answer
    x = 46,726.10

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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.