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Finding the Fourth Proportional to 8,755.44, 12,085.98 and 5,921.45

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Solution

The fourth proportional to 8,755.44, 12,085.98 and 5,921.45 is: 8,173.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,755.44 : 12,085.98 = 5,921.45 : x
  2. Step 2: Convert to fraction form
    8,755.44/12,085.98 = 5,921.45/x
  3. Step 3: Cross multiply
    8,755.44x = 12,085.98 × 5,921.45
  4. Step 4: Simplify right side
    8,755.44x = 71,566,606.90
  5. Step 5: Solve for x
    x = 71,566,606.90/8,755.44
  6. Step 6: Final answer
    x = 8,173.96

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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.