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Finding the Fourth Proportional to 19,070.67, 28,543.91 and 17,251.95

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Solution

The fourth proportional to 19,070.67, 28,543.91 and 17,251.95 is: 25,821.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,070.67 : 28,543.91 = 17,251.95 : x
  2. Step 2: Convert to fraction form
    19,070.67/28,543.91 = 17,251.95/x
  3. Step 3: Cross multiply
    19,070.67x = 28,543.91 × 17,251.95
  4. Step 4: Simplify right side
    19,070.67x = 492,438,021.86
  5. Step 5: Solve for x
    x = 492,438,021.86/19,070.67
  6. Step 6: Final answer
    x = 25,821.75

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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.