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Finding the Fourth Proportional to 32,640.52, 48,940.92 and 13,910.08

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Solution

The fourth proportional to 32,640.52, 48,940.92 and 13,910.08 is: 20,856.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,640.52 : 48,940.92 = 13,910.08 : x
  2. Step 2: Convert to fraction form
    32,640.52/48,940.92 = 13,910.08/x
  3. Step 3: Cross multiply
    32,640.52x = 48,940.92 × 13,910.08
  4. Step 4: Simplify right side
    32,640.52x = 680,772,112.47
  5. Step 5: Solve for x
    x = 680,772,112.47/32,640.52
  6. Step 6: Final answer
    x = 20,856.66

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1.5x scale

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.