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Finding the Fourth Proportional to 14,093.64, 21,138.84 and 4,733.28

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Solution

The fourth proportional to 14,093.64, 21,138.84 and 4,733.28 is: 7,099.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,093.64 : 21,138.84 = 4,733.28 : x
  2. Step 2: Convert to fraction form
    14,093.64/21,138.84 = 4,733.28/x
  3. Step 3: Cross multiply
    14,093.64x = 21,138.84 × 4,733.28
  4. Step 4: Simplify right side
    14,093.64x = 100,056,048.60
  5. Step 5: Solve for x
    x = 100,056,048.60/14,093.64
  6. Step 6: Final answer
    x = 7,099.38

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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.