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Finding the Fourth Proportional to 66,673.70, 100,010.55 and 63,611.90

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Solution

The fourth proportional to 66,673.70, 100,010.55 and 63,611.90 is: 95,417.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,673.70 : 100,010.55 = 63,611.90 : x
  2. Step 2: Convert to fraction form
    66,673.70/100,010.55 = 63,611.90/x
  3. Step 3: Cross multiply
    66,673.70x = 100,010.55 × 63,611.90
  4. Step 4: Simplify right side
    66,673.70x = 6,361,861,105.55
  5. Step 5: Solve for x
    x = 6,361,861,105.55/66,673.70
  6. Step 6: Final answer
    x = 95,417.85

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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.