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Finding the Fourth Proportional to 8,531.86, 11,774.32 and 4,755.24

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Solution

The fourth proportional to 8,531.86, 11,774.32 and 4,755.24 is: 6,562.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,531.86 : 11,774.32 = 4,755.24 : x
  2. Step 2: Convert to fraction form
    8,531.86/11,774.32 = 4,755.24/x
  3. Step 3: Cross multiply
    8,531.86x = 11,774.32 × 4,755.24
  4. Step 4: Simplify right side
    8,531.86x = 55,989,717.44
  5. Step 5: Solve for x
    x = 55,989,717.44/8,531.86
  6. Step 6: Final answer
    x = 6,562.43

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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.