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Finding the Fourth Proportional to 64,936.69, 89,611.76 and 36,256.79

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Solution

The fourth proportional to 64,936.69, 89,611.76 and 36,256.79 is: 50,033.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,936.69 : 89,611.76 = 36,256.79 : x
  2. Step 2: Convert to fraction form
    64,936.69/89,611.76 = 36,256.79/x
  3. Step 3: Cross multiply
    64,936.69x = 89,611.76 × 36,256.79
  4. Step 4: Simplify right side
    64,936.69x = 3,249,034,806.60
  5. Step 5: Solve for x
    x = 3,249,034,806.60/64,936.69
  6. Step 6: Final answer
    x = 50,033.89

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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.