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Finding the Fourth Proportional to 66,890.84, 100,349.48 and 24,771.32

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Solution

The fourth proportional to 66,890.84, 100,349.48 and 24,771.32 is: 37,161.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,890.84 : 100,349.48 = 24,771.32 : x
  2. Step 2: Convert to fraction form
    66,890.84/100,349.48 = 24,771.32/x
  3. Step 3: Cross multiply
    66,890.84x = 100,349.48 × 24,771.32
  4. Step 4: Simplify right side
    66,890.84x = 2,485,789,080.91
  5. Step 5: Solve for x
    x = 2,485,789,080.91/66,890.84
  6. Step 6: Final answer
    x = 37,161.88

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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.