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Finding the Fourth Proportional to 8,821.03, 12,173.15 and 4,842.50

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Solution

The fourth proportional to 8,821.03, 12,173.15 and 4,842.50 is: 6,682.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,821.03 : 12,173.15 = 4,842.50 : x
  2. Step 2: Convert to fraction form
    8,821.03/12,173.15 = 4,842.50/x
  3. Step 3: Cross multiply
    8,821.03x = 12,173.15 × 4,842.50
  4. Step 4: Simplify right side
    8,821.03x = 58,948,490.98
  5. Step 5: Solve for x
    x = 58,948,490.98/8,821.03
  6. Step 6: Final answer
    x = 6,682.73

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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.