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Finding the Fourth Proportional to 27,645.44, 41,395.86 and 15,139.44

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Solution

The fourth proportional to 27,645.44, 41,395.86 and 15,139.44 is: 22,669.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,645.44 : 41,395.86 = 15,139.44 : x
  2. Step 2: Convert to fraction form
    27,645.44/41,395.86 = 15,139.44/x
  3. Step 3: Cross multiply
    27,645.44x = 41,395.86 × 15,139.44
  4. Step 4: Simplify right side
    27,645.44x = 626,710,138.72
  5. Step 5: Solve for x
    x = 626,710,138.72/27,645.44
  6. Step 6: Final answer
    x = 22,669.57

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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.