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Finding the Fourth Proportional to 17,199.81, 25,811.96 and 7,841.07

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Solution

The fourth proportional to 17,199.81, 25,811.96 and 7,841.07 is: 11,767.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,199.81 : 25,811.96 = 7,841.07 : x
  2. Step 2: Convert to fraction form
    17,199.81/25,811.96 = 7,841.07/x
  3. Step 3: Cross multiply
    17,199.81x = 25,811.96 × 7,841.07
  4. Step 4: Simplify right side
    17,199.81x = 202,393,345.99
  5. Step 5: Solve for x
    x = 202,393,345.99/17,199.81
  6. Step 6: Final answer
    x = 11,767.18

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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.