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Finding the Fourth Proportional to 22,038.84, 33,061.92 and 8,890.11

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Solution

The fourth proportional to 22,038.84, 33,061.92 and 8,890.11 is: 13,336.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,038.84 : 33,061.92 = 8,890.11 : x
  2. Step 2: Convert to fraction form
    22,038.84/33,061.92 = 8,890.11/x
  3. Step 3: Cross multiply
    22,038.84x = 33,061.92 × 8,890.11
  4. Step 4: Simplify right side
    22,038.84x = 293,924,105.61
  5. Step 5: Solve for x
    x = 293,924,105.61/22,038.84
  6. Step 6: Final answer
    x = 13,336.64

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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.