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Finding the Fourth Proportional to 66,943.80, 100,362.42 and 33,186.06

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Solution

The fourth proportional to 66,943.80, 100,362.42 and 33,186.06 is: 49,752.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,943.80 : 100,362.42 = 33,186.06 : x
  2. Step 2: Convert to fraction form
    66,943.80/100,362.42 = 33,186.06/x
  3. Step 3: Cross multiply
    66,943.80x = 100,362.42 × 33,186.06
  4. Step 4: Simplify right side
    66,943.80x = 3,330,633,291.87
  5. Step 5: Solve for x
    x = 3,330,633,291.87/66,943.80
  6. Step 6: Final answer
    x = 49,752.68

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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.