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Finding the Fourth Proportional to 66,100.64, 91,219.98 and 35,885.96

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Solution

The fourth proportional to 66,100.64, 91,219.98 and 35,885.96 is: 49,523.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,100.64 : 91,219.98 = 35,885.96 : x
  2. Step 2: Convert to fraction form
    66,100.64/91,219.98 = 35,885.96/x
  3. Step 3: Cross multiply
    66,100.64x = 91,219.98 × 35,885.96
  4. Step 4: Simplify right side
    66,100.64x = 3,273,516,553.48
  5. Step 5: Solve for x
    x = 3,273,516,553.48/66,100.64
  6. Step 6: Final answer
    x = 49,523.22

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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.