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Finding the Fourth Proportional to 18,416.69, 25,415.03 and 10,033.19

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Solution

The fourth proportional to 18,416.69, 25,415.03 and 10,033.19 is: 13,845.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,416.69 : 25,415.03 = 10,033.19 : x
  2. Step 2: Convert to fraction form
    18,416.69/25,415.03 = 10,033.19/x
  3. Step 3: Cross multiply
    18,416.69x = 25,415.03 × 10,033.19
  4. Step 4: Simplify right side
    18,416.69x = 254,993,824.85
  5. Step 5: Solve for x
    x = 254,993,824.85/18,416.69
  6. Step 6: Final answer
    x = 13,845.80

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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.