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Finding the Fourth Proportional to 28,867.86, 43,303.47 and 8,092.98

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Solution

The fourth proportional to 28,867.86, 43,303.47 and 8,092.98 is: 12,139.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,867.86 : 43,303.47 = 8,092.98 : x
  2. Step 2: Convert to fraction form
    28,867.86/43,303.47 = 8,092.98/x
  3. Step 3: Cross multiply
    28,867.86x = 43,303.47 × 8,092.98
  4. Step 4: Simplify right side
    28,867.86x = 350,454,116.64
  5. Step 5: Solve for x
    x = 350,454,116.64/28,867.86
  6. Step 6: Final answer
    x = 12,139.94

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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.