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Finding the Fourth Proportional to 66,749.86, 100,066.47 and 33,423.22

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Solution

The fourth proportional to 66,749.86, 100,066.47 and 33,423.22 is: 50,105.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,749.86 : 100,066.47 = 33,423.22 : x
  2. Step 2: Convert to fraction form
    66,749.86/100,066.47 = 33,423.22/x
  3. Step 3: Cross multiply
    66,749.86x = 100,066.47 × 33,423.22
  4. Step 4: Simplify right side
    66,749.86x = 3,344,543,641.43
  5. Step 5: Solve for x
    x = 3,344,543,641.43/66,749.86
  6. Step 6: Final answer
    x = 50,105.63

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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.