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Finding the Fourth Proportional to 8,937.59, 13,398.17 and 3,090.11

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Solution

The fourth proportional to 8,937.59, 13,398.17 and 3,090.11 is: 4,632.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,937.59 : 13,398.17 = 3,090.11 : x
  2. Step 2: Convert to fraction form
    8,937.59/13,398.17 = 3,090.11/x
  3. Step 3: Cross multiply
    8,937.59x = 13,398.17 × 3,090.11
  4. Step 4: Simplify right side
    8,937.59x = 41,401,736.66
  5. Step 5: Solve for x
    x = 41,401,736.66/8,937.59
  6. Step 6: Final answer
    x = 4,632.32

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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.