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Finding the Fourth Proportional to 25,446, 35,115.48 and 14,268

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Solution

The fourth proportional to 25,446, 35,115.48 and 14,268 is: 19,689.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,446 : 35,115.48 = 14,268 : x
  2. Step 2: Convert to fraction form
    25,446/35,115.48 = 14,268/x
  3. Step 3: Cross multiply
    25,446x = 35,115.48 × 14,268
  4. Step 4: Simplify right side
    25,446x = 501,027,668.64
  5. Step 5: Solve for x
    x = 501,027,668.64/25,446
  6. Step 6: Final answer
    x = 19,689.84

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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.