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Finding the Fourth Proportional to 5,788.22, 8,679.74 and 1,838.36

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Solution

The fourth proportional to 5,788.22, 8,679.74 and 1,838.36 is: 2,756.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,788.22 : 8,679.74 = 1,838.36 : x
  2. Step 2: Convert to fraction form
    5,788.22/8,679.74 = 1,838.36/x
  3. Step 3: Cross multiply
    5,788.22x = 8,679.74 × 1,838.36
  4. Step 4: Simplify right side
    5,788.22x = 15,956,486.83
  5. Step 5: Solve for x
    x = 15,956,486.83/5,788.22
  6. Step 6: Final answer
    x = 2,756.72

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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.