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Finding the Fourth Proportional to 22,040.40, 33,068.70 and 8,894.10

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Solution

The fourth proportional to 22,040.40, 33,068.70 and 8,894.10 is: 13,344.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,040.40 : 33,068.70 = 8,894.10 : x
  2. Step 2: Convert to fraction form
    22,040.40/33,068.70 = 8,894.10/x
  3. Step 3: Cross multiply
    22,040.40x = 33,068.70 × 8,894.10
  4. Step 4: Simplify right side
    22,040.40x = 294,116,324.67
  5. Step 5: Solve for x
    x = 294,116,324.67/22,040.40
  6. Step 6: Final answer
    x = 13,344.42

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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.