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Finding the Fourth Proportional to 36,703.20, 55,056.90 and 10,405.88

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Solution

The fourth proportional to 36,703.20, 55,056.90 and 10,405.88 is: 15,609.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,703.20 : 55,056.90 = 10,405.88 : x
  2. Step 2: Convert to fraction form
    36,703.20/55,056.90 = 10,405.88/x
  3. Step 3: Cross multiply
    36,703.20x = 55,056.90 × 10,405.88
  4. Step 4: Simplify right side
    36,703.20x = 572,915,494.57
  5. Step 5: Solve for x
    x = 572,915,494.57/36,703.20
  6. Step 6: Final answer
    x = 15,609.42

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.