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Finding the Fourth Proportional to 32,512.50, 48,768.77 and 7,888.50

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Solution

The fourth proportional to 32,512.50, 48,768.77 and 7,888.50 is: 11,832.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,512.50 : 48,768.77 = 7,888.50 : x
  2. Step 2: Convert to fraction form
    32,512.50/48,768.77 = 7,888.50/x
  3. Step 3: Cross multiply
    32,512.50x = 48,768.77 × 7,888.50
  4. Step 4: Simplify right side
    32,512.50x = 384,712,442.15
  5. Step 5: Solve for x
    x = 384,712,442.15/32,512.50
  6. Step 6: Final answer
    x = 11,832.75

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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.