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Finding the Fourth Proportional to 19,170.75, 28,760.74 and 6,023.12

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Solution

The fourth proportional to 19,170.75, 28,760.74 and 6,023.12 is: 9,036.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,170.75 : 28,760.74 = 6,023.12 : x
  2. Step 2: Convert to fraction form
    19,170.75/28,760.74 = 6,023.12/x
  3. Step 3: Cross multiply
    19,170.75x = 28,760.74 × 6,023.12
  4. Step 4: Simplify right side
    19,170.75x = 173,229,280.46
  5. Step 5: Solve for x
    x = 173,229,280.46/19,170.75
  6. Step 6: Final answer
    x = 9,036.12

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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.