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Finding the Fourth Proportional to 6,742.05, 10,113.06 and 3,135.27

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Solution

The fourth proportional to 6,742.05, 10,113.06 and 3,135.27 is: 4,702.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,742.05 : 10,113.06 = 3,135.27 : x
  2. Step 2: Convert to fraction form
    6,742.05/10,113.06 = 3,135.27/x
  3. Step 3: Cross multiply
    6,742.05x = 10,113.06 × 3,135.27
  4. Step 4: Simplify right side
    6,742.05x = 31,707,173.63
  5. Step 5: Solve for x
    x = 31,707,173.63/6,742.05
  6. Step 6: Final answer
    x = 4,702.90

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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.