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Finding the Fourth Proportional to 66,808.03, 100,202.74 and 16,885.03

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Solution

The fourth proportional to 66,808.03, 100,202.74 and 16,885.03 is: 25,325.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,808.03 : 100,202.74 = 16,885.03 : x
  2. Step 2: Convert to fraction form
    66,808.03/100,202.74 = 16,885.03/x
  3. Step 3: Cross multiply
    66,808.03x = 100,202.74 × 16,885.03
  4. Step 4: Simplify right side
    66,808.03x = 1,691,926,270.98
  5. Step 5: Solve for x
    x = 1,691,926,270.98/66,808.03
  6. Step 6: Final answer
    x = 25,325.19

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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.