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Finding the Fourth Proportional to 14,772.19, 20,379.80 and 9,097.09

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Solution

The fourth proportional to 14,772.19, 20,379.80 and 9,097.09 is: 12,550.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,772.19 : 20,379.80 = 9,097.09 : x
  2. Step 2: Convert to fraction form
    14,772.19/20,379.80 = 9,097.09/x
  3. Step 3: Cross multiply
    14,772.19x = 20,379.80 × 9,097.09
  4. Step 4: Simplify right side
    14,772.19x = 185,396,961.21
  5. Step 5: Solve for x
    x = 185,396,961.21/14,772.19
  6. Step 6: Final answer
    x = 12,550.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.