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Finding the Fourth Proportional to 32,670.94, 48,993.21 and 12,669.90

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Solution

The fourth proportional to 32,670.94, 48,993.21 and 12,669.90 is: 18,999.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,670.94 : 48,993.21 = 12,669.90 : x
  2. Step 2: Convert to fraction form
    32,670.94/48,993.21 = 12,669.90/x
  3. Step 3: Cross multiply
    32,670.94x = 48,993.21 × 12,669.90
  4. Step 4: Simplify right side
    32,670.94x = 620,739,071.38
  5. Step 5: Solve for x
    x = 620,739,071.38/32,670.94
  6. Step 6: Final answer
    x = 18,999.73

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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.