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Finding the Fourth Proportional to 17,893.80, 26,848.62 and 6,215.40

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Solution

The fourth proportional to 17,893.80, 26,848.62 and 6,215.40 is: 9,325.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,893.80 : 26,848.62 = 6,215.40 : x
  2. Step 2: Convert to fraction form
    17,893.80/26,848.62 = 6,215.40/x
  3. Step 3: Cross multiply
    17,893.80x = 26,848.62 × 6,215.40
  4. Step 4: Simplify right side
    17,893.80x = 166,874,912.75
  5. Step 5: Solve for x
    x = 166,874,912.75/17,893.80
  6. Step 6: Final answer
    x = 9,325.85

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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.