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Finding the Fourth Proportional to 18,161.84, 25,063.99 and 10,203.91

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Solution

The fourth proportional to 18,161.84, 25,063.99 and 10,203.91 is: 14,081.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,161.84 : 25,063.99 = 10,203.91 : x
  2. Step 2: Convert to fraction form
    18,161.84/25,063.99 = 10,203.91/x
  3. Step 3: Cross multiply
    18,161.84x = 25,063.99 × 10,203.91
  4. Step 4: Simplify right side
    18,161.84x = 255,750,610.03
  5. Step 5: Solve for x
    x = 255,750,610.03/18,161.84
  6. Step 6: Final answer
    x = 14,081.75

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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.