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Finding the Fourth Proportional to 43,664.63, 65,504.84 and 28,885.77

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Solution

The fourth proportional to 43,664.63, 65,504.84 and 28,885.77 is: 43,333.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,664.63 : 65,504.84 = 28,885.77 : x
  2. Step 2: Convert to fraction form
    43,664.63/65,504.84 = 28,885.77/x
  3. Step 3: Cross multiply
    43,664.63x = 65,504.84 × 28,885.77
  4. Step 4: Simplify right side
    43,664.63x = 1,892,157,597.70
  5. Step 5: Solve for x
    x = 1,892,157,597.70/43,664.63
  6. Step 6: Final answer
    x = 43,333.88

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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.