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Finding the Fourth Proportional to 11,900.01, 17,850.04 and 4,878.73

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Solution

The fourth proportional to 11,900.01, 17,850.04 and 4,878.73 is: 7,318.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,900.01 : 17,850.04 = 4,878.73 : x
  2. Step 2: Convert to fraction form
    11,900.01/17,850.04 = 4,878.73/x
  3. Step 3: Cross multiply
    11,900.01x = 17,850.04 × 4,878.73
  4. Step 4: Simplify right side
    11,900.01x = 87,085,535.76
  5. Step 5: Solve for x
    x = 87,085,535.76/11,900.01
  6. Step 6: Final answer
    x = 7,318.10

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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.