Home / 36,415.08-54,622.79-12,722.52

Finding the Fourth Proportional to 36,415.08, 54,622.79 and 12,722.52

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Solution

The fourth proportional to 36,415.08, 54,622.79 and 12,722.52 is: 19,083.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,415.08 : 54,622.79 = 12,722.52 : x
  2. Step 2: Convert to fraction form
    36,415.08/54,622.79 = 12,722.52/x
  3. Step 3: Cross multiply
    36,415.08x = 54,622.79 × 12,722.52
  4. Step 4: Simplify right side
    36,415.08x = 694,939,474.62
  5. Step 5: Solve for x
    x = 694,939,474.62/36,415.08
  6. Step 6: Final answer
    x = 19,083.84

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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.