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Finding the Fourth Proportional to 32,491.80, 48,742.83 and 13,771.89

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Solution

The fourth proportional to 32,491.80, 48,742.83 and 13,771.89 is: 20,660.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,491.80 : 48,742.83 = 13,771.89 : x
  2. Step 2: Convert to fraction form
    32,491.80/48,742.83 = 13,771.89/x
  3. Step 3: Cross multiply
    32,491.80x = 48,742.83 × 13,771.89
  4. Step 4: Simplify right side
    32,491.80x = 671,280,893.05
  5. Step 5: Solve for x
    x = 671,280,893.05/32,491.80
  6. Step 6: Final answer
    x = 20,660.01

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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.