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Finding the Fourth Proportional to 22,506.55, 33,738.95 and 7,711.95

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Solution

The fourth proportional to 22,506.55, 33,738.95 and 7,711.95 is: 11,560.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,506.55 : 33,738.95 = 7,711.95 : x
  2. Step 2: Convert to fraction form
    22,506.55/33,738.95 = 7,711.95/x
  3. Step 3: Cross multiply
    22,506.55x = 33,738.95 × 7,711.95
  4. Step 4: Simplify right side
    22,506.55x = 260,193,095.45
  5. Step 5: Solve for x
    x = 260,193,095.45/22,506.55
  6. Step 6: Final answer
    x = 11,560.77

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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.