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Finding the Fourth Proportional to 8,257.86, 11,395.17 and 4,531.86

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Solution

The fourth proportional to 8,257.86, 11,395.17 and 4,531.86 is: 6,253.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,257.86 : 11,395.17 = 4,531.86 : x
  2. Step 2: Convert to fraction form
    8,257.86/11,395.17 = 4,531.86/x
  3. Step 3: Cross multiply
    8,257.86x = 11,395.17 × 4,531.86
  4. Step 4: Simplify right side
    8,257.86x = 51,641,315.12
  5. Step 5: Solve for x
    x = 51,641,315.12/8,257.86
  6. Step 6: Final answer
    x = 6,253.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.