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Finding the Fourth Proportional to 11,210.88, 16,817.88 and 3,813.32

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Solution

The fourth proportional to 11,210.88, 16,817.88 and 3,813.32 is: 5,720.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,210.88 : 16,817.88 = 3,813.32 : x
  2. Step 2: Convert to fraction form
    11,210.88/16,817.88 = 3,813.32/x
  3. Step 3: Cross multiply
    11,210.88x = 16,817.88 × 3,813.32
  4. Step 4: Simplify right side
    11,210.88x = 64,131,958.16
  5. Step 5: Solve for x
    x = 64,131,958.16/11,210.88
  6. Step 6: Final answer
    x = 5,720.51

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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.