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Finding the Fourth Proportional to 17,140.92, 25,719.02 and 10,899.26

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Solution

The fourth proportional to 17,140.92, 25,719.02 and 10,899.26 is: 16,353.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,140.92 : 25,719.02 = 10,899.26 : x
  2. Step 2: Convert to fraction form
    17,140.92/25,719.02 = 10,899.26/x
  3. Step 3: Cross multiply
    17,140.92x = 25,719.02 × 10,899.26
  4. Step 4: Simplify right side
    17,140.92x = 280,318,285.93
  5. Step 5: Solve for x
    x = 280,318,285.93/17,140.92
  6. Step 6: Final answer
    x = 16,353.75

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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.