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Finding the Fourth Proportional to 66,224.84, 91,391.42 and 36,010.38

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Solution

The fourth proportional to 66,224.84, 91,391.42 and 36,010.38 is: 49,694.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,224.84 : 91,391.42 = 36,010.38 : x
  2. Step 2: Convert to fraction form
    66,224.84/91,391.42 = 36,010.38/x
  3. Step 3: Cross multiply
    66,224.84x = 91,391.42 × 36,010.38
  4. Step 4: Simplify right side
    66,224.84x = 3,291,039,762.94
  5. Step 5: Solve for x
    x = 3,291,039,762.94/66,224.84
  6. Step 6: Final answer
    x = 49,694.94

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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.