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Finding the Fourth Proportional to 66,294.09, 91,487.22 and 36,081.09

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Solution

The fourth proportional to 66,294.09, 91,487.22 and 36,081.09 is: 49,792.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,294.09 : 91,487.22 = 36,081.09 : x
  2. Step 2: Convert to fraction form
    66,294.09/91,487.22 = 36,081.09/x
  3. Step 3: Cross multiply
    66,294.09x = 91,487.22 × 36,081.09
  4. Step 4: Simplify right side
    66,294.09x = 3,300,958,618.67
  5. Step 5: Solve for x
    x = 3,300,958,618.67/66,294.09
  6. Step 6: Final answer
    x = 49,792.65

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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.