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Finding the Fourth Proportional to 19,057.88, 28,587.60 and 5,910.32

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Solution

The fourth proportional to 19,057.88, 28,587.60 and 5,910.32 is: 8,865.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,057.88 : 28,587.60 = 5,910.32 : x
  2. Step 2: Convert to fraction form
    19,057.88/28,587.60 = 5,910.32/x
  3. Step 3: Cross multiply
    19,057.88x = 28,587.60 × 5,910.32
  4. Step 4: Simplify right side
    19,057.88x = 168,961,864.03
  5. Step 5: Solve for x
    x = 168,961,864.03/19,057.88
  6. Step 6: Final answer
    x = 8,865.72

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.