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Finding the Fourth Proportional to 33,781.50, 46,619.91 and 18,877.50

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Solution

The fourth proportional to 33,781.50, 46,619.91 and 18,877.50 is: 26,051.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,781.50 : 46,619.91 = 18,877.50 : x
  2. Step 2: Convert to fraction form
    33,781.50/46,619.91 = 18,877.50/x
  3. Step 3: Cross multiply
    33,781.50x = 46,619.91 × 18,877.50
  4. Step 4: Simplify right side
    33,781.50x = 880,067,351.03
  5. Step 5: Solve for x
    x = 880,067,351.03/33,781.50
  6. Step 6: Final answer
    x = 26,051.75

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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.