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Finding the Fourth Proportional to 14,919.85, 22,379.78 and 7,104.97

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Solution

The fourth proportional to 14,919.85, 22,379.78 and 7,104.97 is: 10,657.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,919.85 : 22,379.78 = 7,104.97 : x
  2. Step 2: Convert to fraction form
    14,919.85/22,379.78 = 7,104.97/x
  3. Step 3: Cross multiply
    14,919.85x = 22,379.78 × 7,104.97
  4. Step 4: Simplify right side
    14,919.85x = 159,007,665.51
  5. Step 5: Solve for x
    x = 159,007,665.51/14,919.85
  6. Step 6: Final answer
    x = 10,657.46

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Similar ratio
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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.