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Finding the Fourth Proportional to 18,557.28, 27,835.98 and 4,706.28

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Solution

The fourth proportional to 18,557.28, 27,835.98 and 4,706.28 is: 7,059.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,557.28 : 27,835.98 = 4,706.28 : x
  2. Step 2: Convert to fraction form
    18,557.28/27,835.98 = 4,706.28/x
  3. Step 3: Cross multiply
    18,557.28x = 27,835.98 × 4,706.28
  4. Step 4: Simplify right side
    18,557.28x = 131,003,915.95
  5. Step 5: Solve for x
    x = 131,003,915.95/18,557.28
  6. Step 6: Final answer
    x = 7,059.44

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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.