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Finding the Fourth Proportional to 66,790.41, 100,222.50 and 37,224.90

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Solution

The fourth proportional to 66,790.41, 100,222.50 and 37,224.90 is: 55,857.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,790.41 : 100,222.50 = 37,224.90 : x
  2. Step 2: Convert to fraction form
    66,790.41/100,222.50 = 37,224.90/x
  3. Step 3: Cross multiply
    66,790.41x = 100,222.50 × 37,224.90
  4. Step 4: Simplify right side
    66,790.41x = 3,730,772,540.25
  5. Step 5: Solve for x
    x = 3,730,772,540.25/66,790.41
  6. Step 6: Final answer
    x = 55,857.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.