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Finding the Fourth Proportional to 8,472.44, 12,707.15 and 4,531.59

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Solution

The fourth proportional to 8,472.44, 12,707.15 and 4,531.59 is: 6,796.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,472.44 : 12,707.15 = 4,531.59 : x
  2. Step 2: Convert to fraction form
    8,472.44/12,707.15 = 4,531.59/x
  3. Step 3: Cross multiply
    8,472.44x = 12,707.15 × 4,531.59
  4. Step 4: Simplify right side
    8,472.44x = 57,583,571.21
  5. Step 5: Solve for x
    x = 57,583,571.21/8,472.44
  6. Step 6: Final answer
    x = 6,796.57

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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.