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Finding the Fourth Proportional to 8,937.60, 13,399.11 and 6,021.60

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Solution

The fourth proportional to 8,937.60, 13,399.11 and 6,021.60 is: 9,027.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,937.60 : 13,399.11 = 6,021.60 : x
  2. Step 2: Convert to fraction form
    8,937.60/13,399.11 = 6,021.60/x
  3. Step 3: Cross multiply
    8,937.60x = 13,399.11 × 6,021.60
  4. Step 4: Simplify right side
    8,937.60x = 80,684,080.78
  5. Step 5: Solve for x
    x = 80,684,080.78/8,937.60
  6. Step 6: Final answer
    x = 9,027.49

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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.