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Finding the Fourth Proportional to 28,874.37, 39,843.99 and 16,935.51

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Solution

The fourth proportional to 28,874.37, 39,843.99 and 16,935.51 is: 23,369.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,874.37 : 39,843.99 = 16,935.51 : x
  2. Step 2: Convert to fraction form
    28,874.37/39,843.99 = 16,935.51/x
  3. Step 3: Cross multiply
    28,874.37x = 39,843.99 × 16,935.51
  4. Step 4: Simplify right side
    28,874.37x = 674,778,291.08
  5. Step 5: Solve for x
    x = 674,778,291.08/28,874.37
  6. Step 6: Final answer
    x = 23,369.46

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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.