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Finding the Fourth Proportional to 56,413.66, 84,620.49 and 28,731.10

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Solution

The fourth proportional to 56,413.66, 84,620.49 and 28,731.10 is: 43,096.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,413.66 : 84,620.49 = 28,731.10 : x
  2. Step 2: Convert to fraction form
    56,413.66/84,620.49 = 28,731.10/x
  3. Step 3: Cross multiply
    56,413.66x = 84,620.49 × 28,731.10
  4. Step 4: Simplify right side
    56,413.66x = 2,431,239,760.24
  5. Step 5: Solve for x
    x = 2,431,239,760.24/56,413.66
  6. Step 6: Final answer
    x = 43,096.65

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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.