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Finding the Fourth Proportional to 19,794.87, 29,685.06 and 5,751.09

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Solution

The fourth proportional to 19,794.87, 29,685.06 and 5,751.09 is: 8,624.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,794.87 : 29,685.06 = 5,751.09 : x
  2. Step 2: Convert to fraction form
    19,794.87/29,685.06 = 5,751.09/x
  3. Step 3: Cross multiply
    19,794.87x = 29,685.06 × 5,751.09
  4. Step 4: Simplify right side
    19,794.87x = 170,721,451.72
  5. Step 5: Solve for x
    x = 170,721,451.72/19,794.87
  6. Step 6: Final answer
    x = 8,624.53

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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.