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Finding the Fourth Proportional to 36,818.70, 55,201.05 and 14,621.10

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Solution

The fourth proportional to 36,818.70, 55,201.05 and 14,621.10 is: 21,920.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,818.70 : 55,201.05 = 14,621.10 : x
  2. Step 2: Convert to fraction form
    36,818.70/55,201.05 = 14,621.10/x
  3. Step 3: Cross multiply
    36,818.70x = 55,201.05 × 14,621.10
  4. Step 4: Simplify right side
    36,818.70x = 807,100,072.16
  5. Step 5: Solve for x
    x = 807,100,072.16/36,818.70
  6. Step 6: Final answer
    x = 21,920.93

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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.