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Finding the Fourth Proportional to 11,811.91, 17,625.33 and 10,570.79

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Solution

The fourth proportional to 11,811.91, 17,625.33 and 10,570.79 is: 15,773.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,811.91 : 17,625.33 = 10,570.79 : x
  2. Step 2: Convert to fraction form
    11,811.91/17,625.33 = 10,570.79/x
  3. Step 3: Cross multiply
    11,811.91x = 17,625.33 × 10,570.79
  4. Step 4: Simplify right side
    11,811.91x = 186,313,662.11
  5. Step 5: Solve for x
    x = 186,313,662.11/11,811.91
  6. Step 6: Final answer
    x = 15,773.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.