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Finding the Fourth Proportional to 17,191.94, 25,788.14 and 5,505.16

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Solution

The fourth proportional to 17,191.94, 25,788.14 and 5,505.16 is: 8,257.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,191.94 : 25,788.14 = 5,505.16 : x
  2. Step 2: Convert to fraction form
    17,191.94/25,788.14 = 5,505.16/x
  3. Step 3: Cross multiply
    17,191.94x = 25,788.14 × 5,505.16
  4. Step 4: Simplify right side
    17,191.94x = 141,967,744.81
  5. Step 5: Solve for x
    x = 141,967,744.81/17,191.94
  6. Step 6: Final answer
    x = 8,257.81

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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.