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Finding the Fourth Proportional to 17,893.90, 26,862.45 and 17,764.30

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Solution

The fourth proportional to 17,893.90, 26,862.45 and 17,764.30 is: 26,667.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,893.90 : 26,862.45 = 17,764.30 : x
  2. Step 2: Convert to fraction form
    17,893.90/26,862.45 = 17,764.30/x
  3. Step 3: Cross multiply
    17,893.90x = 26,862.45 × 17,764.30
  4. Step 4: Simplify right side
    17,893.90x = 477,192,620.54
  5. Step 5: Solve for x
    x = 477,192,620.54/17,893.90
  6. Step 6: Final answer
    x = 26,667.89

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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.