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Finding the Fourth Proportional to 36,469.60, 54,706.20 and 18,973.60

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Solution

The fourth proportional to 36,469.60, 54,706.20 and 18,973.60 is: 28,461.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,469.60 : 54,706.20 = 18,973.60 : x
  2. Step 2: Convert to fraction form
    36,469.60/54,706.20 = 18,973.60/x
  3. Step 3: Cross multiply
    36,469.60x = 54,706.20 × 18,973.60
  4. Step 4: Simplify right side
    36,469.60x = 1,037,973,556.32
  5. Step 5: Solve for x
    x = 1,037,973,556.32/36,469.60
  6. Step 6: Final answer
    x = 28,461.34

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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.