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Finding the Fourth Proportional to 17,188.83, 25,785.72 and 6,519.11

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Solution

The fourth proportional to 17,188.83, 25,785.72 and 6,519.11 is: 9,779.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,188.83 : 25,785.72 = 6,519.11 : x
  2. Step 2: Convert to fraction form
    17,188.83/25,785.72 = 6,519.11/x
  3. Step 3: Cross multiply
    17,188.83x = 25,785.72 × 6,519.11
  4. Step 4: Simplify right side
    17,188.83x = 168,099,912.51
  5. Step 5: Solve for x
    x = 168,099,912.51/17,188.83
  6. Step 6: Final answer
    x = 9,779.60

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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.