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Finding the Fourth Proportional to 35,384.80, 48,836.37 and 21,245.44

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Solution

The fourth proportional to 35,384.80, 48,836.37 and 21,245.44 is: 29,321.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,384.80 : 48,836.37 = 21,245.44 : x
  2. Step 2: Convert to fraction form
    35,384.80/48,836.37 = 21,245.44/x
  3. Step 3: Cross multiply
    35,384.80x = 48,836.37 × 21,245.44
  4. Step 4: Simplify right side
    35,384.80x = 1,037,550,168.65
  5. Step 5: Solve for x
    x = 1,037,550,168.65/35,384.80
  6. Step 6: Final answer
    x = 29,321.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.