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Finding the Fourth Proportional to 32,279.45, 48,421.96 and 8,905.89

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Solution

The fourth proportional to 32,279.45, 48,421.96 and 8,905.89 is: 13,359.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,279.45 : 48,421.96 = 8,905.89 : x
  2. Step 2: Convert to fraction form
    32,279.45/48,421.96 = 8,905.89/x
  3. Step 3: Cross multiply
    32,279.45x = 48,421.96 × 8,905.89
  4. Step 4: Simplify right side
    32,279.45x = 431,240,530.81
  5. Step 5: Solve for x
    x = 431,240,530.81/32,279.45
  6. Step 6: Final answer
    x = 13,359.60

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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.