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Finding the Fourth Proportional to 7,796.21, 10,755.72 and 4,806.86

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Solution

The fourth proportional to 7,796.21, 10,755.72 and 4,806.86 is: 6,631.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,796.21 : 10,755.72 = 4,806.86 : x
  2. Step 2: Convert to fraction form
    7,796.21/10,755.72 = 4,806.86/x
  3. Step 3: Cross multiply
    7,796.21x = 10,755.72 × 4,806.86
  4. Step 4: Simplify right side
    7,796.21x = 51,701,232.80
  5. Step 5: Solve for x
    x = 51,701,232.80/7,796.21
  6. Step 6: Final answer
    x = 6,631.58

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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.