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Finding the Fourth Proportional to 32,429.77, 48,640.60 and 8,739.19

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Solution

The fourth proportional to 32,429.77, 48,640.60 and 8,739.19 is: 13,107.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,429.77 : 48,640.60 = 8,739.19 : x
  2. Step 2: Convert to fraction form
    32,429.77/48,640.60 = 8,739.19/x
  3. Step 3: Cross multiply
    32,429.77x = 48,640.60 × 8,739.19
  4. Step 4: Simplify right side
    32,429.77x = 425,079,516.84
  5. Step 5: Solve for x
    x = 425,079,516.84/32,429.77
  6. Step 6: Final answer
    x = 13,107.70

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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.