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Finding the Fourth Proportional to 5,539.01, 7,640.90 and 3,414.99

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Solution

The fourth proportional to 5,539.01, 7,640.90 and 3,414.99 is: 4,710.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,539.01 : 7,640.90 = 3,414.99 : x
  2. Step 2: Convert to fraction form
    5,539.01/7,640.90 = 3,414.99/x
  3. Step 3: Cross multiply
    5,539.01x = 7,640.90 × 3,414.99
  4. Step 4: Simplify right side
    5,539.01x = 26,093,580.02
  5. Step 5: Solve for x
    x = 26,093,580.02/5,539.01
  6. Step 6: Final answer
    x = 4,710.88

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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.