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Finding the Fourth Proportional to 66,504.96, 91,773.21 and 37,820.74

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Solution

The fourth proportional to 66,504.96, 91,773.21 and 37,820.74 is: 52,190.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,504.96 : 91,773.21 = 37,820.74 : x
  2. Step 2: Convert to fraction form
    66,504.96/91,773.21 = 37,820.74/x
  3. Step 3: Cross multiply
    66,504.96x = 91,773.21 × 37,820.74
  4. Step 4: Simplify right side
    66,504.96x = 3,470,930,714.38
  5. Step 5: Solve for x
    x = 3,470,930,714.38/66,504.96
  6. Step 6: Final answer
    x = 52,190.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.