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Finding the Fourth Proportional to 52,879.30, 79,317.83 and 12,898.41

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Solution

The fourth proportional to 52,879.30, 79,317.83 and 12,898.41 is: 19,347.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,879.30 : 79,317.83 = 12,898.41 : x
  2. Step 2: Convert to fraction form
    52,879.30/79,317.83 = 12,898.41/x
  3. Step 3: Cross multiply
    52,879.30x = 79,317.83 × 12,898.41
  4. Step 4: Simplify right side
    52,879.30x = 1,023,073,626.45
  5. Step 5: Solve for x
    x = 1,023,073,626.45/52,879.30
  6. Step 6: Final answer
    x = 19,347.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.