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Finding the Fourth Proportional to 29,881.10, 44,821.65 and 8,821.43

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Solution

The fourth proportional to 29,881.10, 44,821.65 and 8,821.43 is: 13,232.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,881.10 : 44,821.65 = 8,821.43 : x
  2. Step 2: Convert to fraction form
    29,881.10/44,821.65 = 8,821.43/x
  3. Step 3: Cross multiply
    29,881.10x = 44,821.65 × 8,821.43
  4. Step 4: Simplify right side
    29,881.10x = 395,391,047.96
  5. Step 5: Solve for x
    x = 395,391,047.96/29,881.10
  6. Step 6: Final answer
    x = 13,232.15

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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.