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Finding the Fourth Proportional to 57,468.86, 79,288.56 and 34,800.60

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Solution

The fourth proportional to 57,468.86, 79,288.56 and 34,800.60 is: 48,013.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,468.86 : 79,288.56 = 34,800.60 : x
  2. Step 2: Convert to fraction form
    57,468.86/79,288.56 = 34,800.60/x
  3. Step 3: Cross multiply
    57,468.86x = 79,288.56 × 34,800.60
  4. Step 4: Simplify right side
    57,468.86x = 2,759,289,461.14
  5. Step 5: Solve for x
    x = 2,759,289,461.14/57,468.86
  6. Step 6: Final answer
    x = 48,013.65

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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.