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Finding the Fourth Proportional to 5,755.49, 8,591.21 and 4,939.01

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Solution

The fourth proportional to 5,755.49, 8,591.21 and 4,939.01 is: 7,372.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,755.49 : 8,591.21 = 4,939.01 : x
  2. Step 2: Convert to fraction form
    5,755.49/8,591.21 = 4,939.01/x
  3. Step 3: Cross multiply
    5,755.49x = 8,591.21 × 4,939.01
  4. Step 4: Simplify right side
    5,755.49x = 42,432,082.97
  5. Step 5: Solve for x
    x = 42,432,082.97/5,755.49
  6. Step 6: Final answer
    x = 7,372.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.