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Finding the Fourth Proportional to 32,500.88, 48,751.31 and 7,876.88

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Solution

The fourth proportional to 32,500.88, 48,751.31 and 7,876.88 is: 11,815.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,500.88 : 48,751.31 = 7,876.88 : x
  2. Step 2: Convert to fraction form
    32,500.88/48,751.31 = 7,876.88/x
  3. Step 3: Cross multiply
    32,500.88x = 48,751.31 × 7,876.88
  4. Step 4: Simplify right side
    32,500.88x = 384,007,994.65
  5. Step 5: Solve for x
    x = 384,007,994.65/32,500.88
  6. Step 6: Final answer
    x = 11,815.31

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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.