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Finding the Fourth Proportional to 67,239.63, 100,836.90 and 33,938.46

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Solution

The fourth proportional to 67,239.63, 100,836.90 and 33,938.46 is: 50,896.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,239.63 : 100,836.90 = 33,938.46 : x
  2. Step 2: Convert to fraction form
    67,239.63/100,836.90 = 33,938.46/x
  3. Step 3: Cross multiply
    67,239.63x = 100,836.90 × 33,938.46
  4. Step 4: Simplify right side
    67,239.63x = 3,422,249,097.17
  5. Step 5: Solve for x
    x = 3,422,249,097.17/67,239.63
  6. Step 6: Final answer
    x = 50,896.31

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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.