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Finding the Fourth Proportional to 27,379.88, 37,790.13 and 17,301.92

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Solution

The fourth proportional to 27,379.88, 37,790.13 and 17,301.92 is: 23,880.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,379.88 : 37,790.13 = 17,301.92 : x
  2. Step 2: Convert to fraction form
    27,379.88/37,790.13 = 17,301.92/x
  3. Step 3: Cross multiply
    27,379.88x = 37,790.13 × 17,301.92
  4. Step 4: Simplify right side
    27,379.88x = 653,841,806.05
  5. Step 5: Solve for x
    x = 653,841,806.05/27,379.88
  6. Step 6: Final answer
    x = 23,880.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.