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Finding the Fourth Proportional to 17,158.67, 25,735.93 and 7,788.74

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Solution

The fourth proportional to 17,158.67, 25,735.93 and 7,788.74 is: 11,682.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,158.67 : 25,735.93 = 7,788.74 : x
  2. Step 2: Convert to fraction form
    17,158.67/25,735.93 = 7,788.74/x
  3. Step 3: Cross multiply
    17,158.67x = 25,735.93 × 7,788.74
  4. Step 4: Simplify right side
    17,158.67x = 200,450,467.43
  5. Step 5: Solve for x
    x = 200,450,467.43/17,158.67
  6. Step 6: Final answer
    x = 11,682.17

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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.