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Finding the Fourth Proportional to 36,323.72, 54,486.80 and 9,669.72

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Solution

The fourth proportional to 36,323.72, 54,486.80 and 9,669.72 is: 14,504.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,323.72 : 54,486.80 = 9,669.72 : x
  2. Step 2: Convert to fraction form
    36,323.72/54,486.80 = 9,669.72/x
  3. Step 3: Cross multiply
    36,323.72x = 54,486.80 × 9,669.72
  4. Step 4: Simplify right side
    36,323.72x = 526,872,099.70
  5. Step 5: Solve for x
    x = 526,872,099.70/36,323.72
  6. Step 6: Final answer
    x = 14,504.90

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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.