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Finding the Fourth Proportional to 14,236.53, 21,355.14 and 4,375.90

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Solution

The fourth proportional to 14,236.53, 21,355.14 and 4,375.90 is: 6,563.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,236.53 : 21,355.14 = 4,375.90 : x
  2. Step 2: Convert to fraction form
    14,236.53/21,355.14 = 4,375.90/x
  3. Step 3: Cross multiply
    14,236.53x = 21,355.14 × 4,375.90
  4. Step 4: Simplify right side
    14,236.53x = 93,447,940.17
  5. Step 5: Solve for x
    x = 93,447,940.17/14,236.53
  6. Step 6: Final answer
    x = 6,563.95

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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.