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Finding the Fourth Proportional to 22,702.66, 34,053.99 and 7,121.50

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Solution

The fourth proportional to 22,702.66, 34,053.99 and 7,121.50 is: 10,682.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,702.66 : 34,053.99 = 7,121.50 : x
  2. Step 2: Convert to fraction form
    22,702.66/34,053.99 = 7,121.50/x
  3. Step 3: Cross multiply
    22,702.66x = 34,053.99 × 7,121.50
  4. Step 4: Simplify right side
    22,702.66x = 242,515,489.79
  5. Step 5: Solve for x
    x = 242,515,489.79/22,702.66
  6. Step 6: Final answer
    x = 10,682.25

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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.