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Finding the Fourth Proportional to 8,480.61, 12,708.57 and 4,092.93

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Solution

The fourth proportional to 8,480.61, 12,708.57 and 4,092.93 is: 6,133.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,480.61 : 12,708.57 = 4,092.93 : x
  2. Step 2: Convert to fraction form
    8,480.61/12,708.57 = 4,092.93/x
  3. Step 3: Cross multiply
    8,480.61x = 12,708.57 × 4,092.93
  4. Step 4: Simplify right side
    8,480.61x = 52,015,287.41
  5. Step 5: Solve for x
    x = 52,015,287.41/8,480.61
  6. Step 6: Final answer
    x = 6,133.44

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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.