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Finding the Fourth Proportional to 27,168.88, 40,759.44 and 9,638.68

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Solution

The fourth proportional to 27,168.88, 40,759.44 and 9,638.68 is: 14,460.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,168.88 : 40,759.44 = 9,638.68 : x
  2. Step 2: Convert to fraction form
    27,168.88/40,759.44 = 9,638.68/x
  3. Step 3: Cross multiply
    27,168.88x = 40,759.44 × 9,638.68
  4. Step 4: Simplify right side
    27,168.88x = 392,867,199.14
  5. Step 5: Solve for x
    x = 392,867,199.14/27,168.88
  6. Step 6: Final answer
    x = 14,460.19

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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.