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Finding the Fourth Proportional to 17,579.67, 26,373.74 and 7,191.45

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Solution

The fourth proportional to 17,579.67, 26,373.74 and 7,191.45 is: 10,788.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,579.67 : 26,373.74 = 7,191.45 : x
  2. Step 2: Convert to fraction form
    17,579.67/26,373.74 = 7,191.45/x
  3. Step 3: Cross multiply
    17,579.67x = 26,373.74 × 7,191.45
  4. Step 4: Simplify right side
    17,579.67x = 189,665,396.57
  5. Step 5: Solve for x
    x = 189,665,396.57/17,579.67
  6. Step 6: Final answer
    x = 10,788.91

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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.