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Finding the Fourth Proportional to 11,893.70, 17,840.55 and 4,498.40

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Solution

The fourth proportional to 11,893.70, 17,840.55 and 4,498.40 is: 6,747.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,893.70 : 17,840.55 = 4,498.40 : x
  2. Step 2: Convert to fraction form
    11,893.70/17,840.55 = 4,498.40/x
  3. Step 3: Cross multiply
    11,893.70x = 17,840.55 × 4,498.40
  4. Step 4: Simplify right side
    11,893.70x = 80,253,930.12
  5. Step 5: Solve for x
    x = 80,253,930.12/11,893.70
  6. Step 6: Final answer
    x = 6,747.60

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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.