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Finding the Fourth Proportional to 66,885.24, 100,344.60 and 47,202.24

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Solution

The fourth proportional to 66,885.24, 100,344.60 and 47,202.24 is: 70,815.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,885.24 : 100,344.60 = 47,202.24 : x
  2. Step 2: Convert to fraction form
    66,885.24/100,344.60 = 47,202.24/x
  3. Step 3: Cross multiply
    66,885.24x = 100,344.60 × 47,202.24
  4. Step 4: Simplify right side
    66,885.24x = 4,736,489,891.90
  5. Step 5: Solve for x
    x = 4,736,489,891.90/66,885.24
  6. Step 6: Final answer
    x = 70,815.17

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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.