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Finding the Fourth Proportional to 8,811.34, 13,213.16 and 3,335.50

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Solution

The fourth proportional to 8,811.34, 13,213.16 and 3,335.50 is: 5,001.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,811.34 : 13,213.16 = 3,335.50 : x
  2. Step 2: Convert to fraction form
    8,811.34/13,213.16 = 3,335.50/x
  3. Step 3: Cross multiply
    8,811.34x = 13,213.16 × 3,335.50
  4. Step 4: Simplify right side
    8,811.34x = 44,072,495.18
  5. Step 5: Solve for x
    x = 44,072,495.18/8,811.34
  6. Step 6: Final answer
    x = 5,001.79

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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.