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Finding the Fourth Proportional to 11,146.04, 16,720.50 and 3,355.64

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Solution

The fourth proportional to 11,146.04, 16,720.50 and 3,355.64 is: 5,033.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,146.04 : 16,720.50 = 3,355.64 : x
  2. Step 2: Convert to fraction form
    11,146.04/16,720.50 = 3,355.64/x
  3. Step 3: Cross multiply
    11,146.04x = 16,720.50 × 3,355.64
  4. Step 4: Simplify right side
    11,146.04x = 56,107,978.62
  5. Step 5: Solve for x
    x = 56,107,978.62/11,146.04
  6. Step 6: Final answer
    x = 5,033.89

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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.