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Finding the Fourth Proportional to 66,256.67, 91,435.31 and 36,042.16

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Solution

The fourth proportional to 66,256.67, 91,435.31 and 36,042.16 is: 49,738.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,256.67 : 91,435.31 = 36,042.16 : x
  2. Step 2: Convert to fraction form
    66,256.67/91,435.31 = 36,042.16/x
  3. Step 3: Cross multiply
    66,256.67x = 91,435.31 × 36,042.16
  4. Step 4: Simplify right side
    66,256.67x = 3,295,525,918.85
  5. Step 5: Solve for x
    x = 3,295,525,918.85/66,256.67
  6. Step 6: Final answer
    x = 49,738.78

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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.