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Finding the Fourth Proportional to 7,469.88, 11,203.74 and 2,539.68

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Solution

The fourth proportional to 7,469.88, 11,203.74 and 2,539.68 is: 3,809.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,469.88 : 11,203.74 = 2,539.68 : x
  2. Step 2: Convert to fraction form
    7,469.88/11,203.74 = 2,539.68/x
  3. Step 3: Cross multiply
    7,469.88x = 11,203.74 × 2,539.68
  4. Step 4: Simplify right side
    7,469.88x = 28,453,914.40
  5. Step 5: Solve for x
    x = 28,453,914.40/7,469.88
  6. Step 6: Final answer
    x = 3,809.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.