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Finding the Fourth Proportional to 66,290.63, 91,481.09 and 36,482.63

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Solution

The fourth proportional to 66,290.63, 91,481.09 and 36,482.63 is: 50,346.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,290.63 : 91,481.09 = 36,482.63 : x
  2. Step 2: Convert to fraction form
    66,290.63/91,481.09 = 36,482.63/x
  3. Step 3: Cross multiply
    66,290.63x = 91,481.09 × 36,482.63
  4. Step 4: Simplify right side
    66,290.63x = 3,337,470,118.65
  5. Step 5: Solve for x
    x = 3,337,470,118.65/66,290.63
  6. Step 6: Final answer
    x = 50,346.03

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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.