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Finding the Fourth Proportional to 66,992.95, 100,491.57 and 33,694.84

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Solution

The fourth proportional to 66,992.95, 100,491.57 and 33,694.84 is: 50,543.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,992.95 : 100,491.57 = 33,694.84 : x
  2. Step 2: Convert to fraction form
    66,992.95/100,491.57 = 33,694.84/x
  3. Step 3: Cross multiply
    66,992.95x = 100,491.57 × 33,694.84
  4. Step 4: Simplify right side
    66,992.95x = 3,386,047,372.50
  5. Step 5: Solve for x
    x = 3,386,047,372.50/66,992.95
  6. Step 6: Final answer
    x = 50,543.34

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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.