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Finding the Fourth Proportional to 14,774.13, 22,161.20 and 8,918.37

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Solution

The fourth proportional to 14,774.13, 22,161.20 and 8,918.37 is: 13,377.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,774.13 : 22,161.20 = 8,918.37 : x
  2. Step 2: Convert to fraction form
    14,774.13/22,161.20 = 8,918.37/x
  3. Step 3: Cross multiply
    14,774.13x = 22,161.20 × 8,918.37
  4. Step 4: Simplify right side
    14,774.13x = 197,641,736.65
  5. Step 5: Solve for x
    x = 197,641,736.65/14,774.13
  6. Step 6: Final answer
    x = 13,377.56

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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.