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Finding the Fourth Proportional to 18,767.66, 25,890.44 and 11,594.99

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Solution

The fourth proportional to 18,767.66, 25,890.44 and 11,594.99 is: 15,995.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,767.66 : 25,890.44 = 11,594.99 : x
  2. Step 2: Convert to fraction form
    18,767.66/25,890.44 = 11,594.99/x
  3. Step 3: Cross multiply
    18,767.66x = 25,890.44 × 11,594.99
  4. Step 4: Simplify right side
    18,767.66x = 300,199,399.65
  5. Step 5: Solve for x
    x = 300,199,399.65/18,767.66
  6. Step 6: Final answer
    x = 15,995.57

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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.