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Finding the Fourth Proportional to 66,423.75, 91,664.78 and 41,273.25

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Solution

The fourth proportional to 66,423.75, 91,664.78 and 41,273.25 is: 56,957.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,423.75 : 91,664.78 = 41,273.25 : x
  2. Step 2: Convert to fraction form
    66,423.75/91,664.78 = 41,273.25/x
  3. Step 3: Cross multiply
    66,423.75x = 91,664.78 × 41,273.25
  4. Step 4: Simplify right side
    66,423.75x = 3,783,303,174.77
  5. Step 5: Solve for x
    x = 3,783,303,174.77/66,423.75
  6. Step 6: Final answer
    x = 56,957.09

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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.