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Finding the Fourth Proportional to 32,490.80, 48,736.20 and 16,906.40

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Solution

The fourth proportional to 32,490.80, 48,736.20 and 16,906.40 is: 25,359.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,490.80 : 48,736.20 = 16,906.40 : x
  2. Step 2: Convert to fraction form
    32,490.80/48,736.20 = 16,906.40/x
  3. Step 3: Cross multiply
    32,490.80x = 48,736.20 × 16,906.40
  4. Step 4: Simplify right side
    32,490.80x = 823,953,691.68
  5. Step 5: Solve for x
    x = 823,953,691.68/32,490.80
  6. Step 6: Final answer
    x = 25,359.60

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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.