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Finding the Fourth Proportional to 11,205.81, 16,804.72 and 3,708

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Solution

The fourth proportional to 11,205.81, 16,804.72 and 3,708 is: 5,560.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,205.81 : 16,804.72 = 3,708 : x
  2. Step 2: Convert to fraction form
    11,205.81/16,804.72 = 3,708/x
  3. Step 3: Cross multiply
    11,205.81x = 16,804.72 × 3,708
  4. Step 4: Simplify right side
    11,205.81x = 62,311,901.76
  5. Step 5: Solve for x
    x = 62,311,901.76/11,205.81
  6. Step 6: Final answer
    x = 5,560.68

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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.