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Finding the Fourth Proportional to 8,672.94, 13,016.70 and 3,746.34

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Solution

The fourth proportional to 8,672.94, 13,016.70 and 3,746.34 is: 5,622.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,672.94 : 13,016.70 = 3,746.34 : x
  2. Step 2: Convert to fraction form
    8,672.94/13,016.70 = 3,746.34/x
  3. Step 3: Cross multiply
    8,672.94x = 13,016.70 × 3,746.34
  4. Step 4: Simplify right side
    8,672.94x = 48,764,983.88
  5. Step 5: Solve for x
    x = 48,764,983.88/8,672.94
  6. Step 6: Final answer
    x = 5,622.66

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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.