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Finding the Fourth Proportional to 33,921, 46,811.31 and 18,813.87

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Solution

The fourth proportional to 33,921, 46,811.31 and 18,813.87 is: 25,963.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,921 : 46,811.31 = 18,813.87 : x
  2. Step 2: Convert to fraction form
    33,921/46,811.31 = 18,813.87/x
  3. Step 3: Cross multiply
    33,921x = 46,811.31 × 18,813.87
  4. Step 4: Simplify right side
    33,921x = 880,701,900.87
  5. Step 5: Solve for x
    x = 880,701,900.87/33,921
  6. Step 6: Final answer
    x = 25,963.32

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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.