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Finding the Fourth Proportional to 32,900.64, 49,350.50 and 7,940.48

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Solution

The fourth proportional to 32,900.64, 49,350.50 and 7,940.48 is: 11,910.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,900.64 : 49,350.50 = 7,940.48 : x
  2. Step 2: Convert to fraction form
    32,900.64/49,350.50 = 7,940.48/x
  3. Step 3: Cross multiply
    32,900.64x = 49,350.50 × 7,940.48
  4. Step 4: Simplify right side
    32,900.64x = 391,866,658.24
  5. Step 5: Solve for x
    x = 391,866,658.24/32,900.64
  6. Step 6: Final answer
    x = 11,910.61

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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.