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Finding the Fourth Proportional to 8,763.04, 12,092.48 and 4,985.68

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Solution

The fourth proportional to 8,763.04, 12,092.48 and 4,985.68 is: 6,879.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,763.04 : 12,092.48 = 4,985.68 : x
  2. Step 2: Convert to fraction form
    8,763.04/12,092.48 = 4,985.68/x
  3. Step 3: Cross multiply
    8,763.04x = 12,092.48 × 4,985.68
  4. Step 4: Simplify right side
    8,763.04x = 60,289,235.69
  5. Step 5: Solve for x
    x = 60,289,235.69/8,763.04
  6. Step 6: Final answer
    x = 6,879.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.