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Finding the Fourth Proportional to 17,367.60, 26,051.20 and 4,219.96

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Solution

The fourth proportional to 17,367.60, 26,051.20 and 4,219.96 is: 6,329.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,367.60 : 26,051.20 = 4,219.96 : x
  2. Step 2: Convert to fraction form
    17,367.60/26,051.20 = 4,219.96/x
  3. Step 3: Cross multiply
    17,367.60x = 26,051.20 × 4,219.96
  4. Step 4: Simplify right side
    17,367.60x = 109,935,021.95
  5. Step 5: Solve for x
    x = 109,935,021.95/17,367.60
  6. Step 6: Final answer
    x = 6,329.89

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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.