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Finding the Fourth Proportional to 27,125.96, 40,656.13 and 13,971.15

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Solution

The fourth proportional to 27,125.96, 40,656.13 and 13,971.15 is: 20,939.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,125.96 : 40,656.13 = 13,971.15 : x
  2. Step 2: Convert to fraction form
    27,125.96/40,656.13 = 13,971.15/x
  3. Step 3: Cross multiply
    27,125.96x = 40,656.13 × 13,971.15
  4. Step 4: Simplify right side
    27,125.96x = 568,012,855.72
  5. Step 5: Solve for x
    x = 568,012,855.72/27,125.96
  6. Step 6: Final answer
    x = 20,939.83

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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.