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Finding the Fourth Proportional to 66,965.85, 100,448.69 and 27,495.18

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Solution

The fourth proportional to 66,965.85, 100,448.69 and 27,495.18 is: 41,242.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,965.85 : 100,448.69 = 27,495.18 : x
  2. Step 2: Convert to fraction form
    66,965.85/100,448.69 = 27,495.18/x
  3. Step 3: Cross multiply
    66,965.85x = 100,448.69 × 27,495.18
  4. Step 4: Simplify right side
    66,965.85x = 2,761,854,674.84
  5. Step 5: Solve for x
    x = 2,761,854,674.84/66,965.85
  6. Step 6: Final answer
    x = 41,242.73

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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.