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Finding the Fourth Proportional to 32,957.20, 49,435.87 and 11,912.09

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Solution

The fourth proportional to 32,957.20, 49,435.87 and 11,912.09 is: 17,868.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,957.20 : 49,435.87 = 11,912.09 : x
  2. Step 2: Convert to fraction form
    32,957.20/49,435.87 = 11,912.09/x
  3. Step 3: Cross multiply
    32,957.20x = 49,435.87 × 11,912.09
  4. Step 4: Simplify right side
    32,957.20x = 588,884,532.67
  5. Step 5: Solve for x
    x = 588,884,532.67/32,957.20
  6. Step 6: Final answer
    x = 17,868.16

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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.