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Finding the Fourth Proportional to 19,232.78, 28,851.80 and 6,086.88

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Solution

The fourth proportional to 19,232.78, 28,851.80 and 6,086.88 is: 9,131.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,232.78 : 28,851.80 = 6,086.88 : x
  2. Step 2: Convert to fraction form
    19,232.78/28,851.80 = 6,086.88/x
  3. Step 3: Cross multiply
    19,232.78x = 28,851.80 × 6,086.88
  4. Step 4: Simplify right side
    19,232.78x = 175,617,413.95
  5. Step 5: Solve for x
    x = 175,617,413.95/19,232.78
  6. Step 6: Final answer
    x = 9,131.15

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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.