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Finding the Fourth Proportional to 11,090.66, 16,639.16 and 3,699.95

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Solution

The fourth proportional to 11,090.66, 16,639.16 and 3,699.95 is: 5,550.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,090.66 : 16,639.16 = 3,699.95 : x
  2. Step 2: Convert to fraction form
    11,090.66/16,639.16 = 3,699.95/x
  3. Step 3: Cross multiply
    11,090.66x = 16,639.16 × 3,699.95
  4. Step 4: Simplify right side
    11,090.66x = 61,563,958.35
  5. Step 5: Solve for x
    x = 61,563,958.35/11,090.66
  6. Step 6: Final answer
    x = 5,550.98

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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.