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Finding the Fourth Proportional to 27,603.99, 38,093.49 and 15,028.74

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Solution

The fourth proportional to 27,603.99, 38,093.49 and 15,028.74 is: 20,739.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,603.99 : 38,093.49 = 15,028.74 : x
  2. Step 2: Convert to fraction form
    27,603.99/38,093.49 = 15,028.74/x
  3. Step 3: Cross multiply
    27,603.99x = 38,093.49 × 15,028.74
  4. Step 4: Simplify right side
    27,603.99x = 572,497,156.90
  5. Step 5: Solve for x
    x = 572,497,156.90/27,603.99
  6. Step 6: Final answer
    x = 20,739.65

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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.