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Finding the Fourth Proportional to 33,422.50, 46,123.05 and 18,518.50

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Solution

The fourth proportional to 33,422.50, 46,123.05 and 18,518.50 is: 25,555.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,422.50 : 46,123.05 = 18,518.50 : x
  2. Step 2: Convert to fraction form
    33,422.50/46,123.05 = 18,518.50/x
  3. Step 3: Cross multiply
    33,422.50x = 46,123.05 × 18,518.50
  4. Step 4: Simplify right side
    33,422.50x = 854,129,701.43
  5. Step 5: Solve for x
    x = 854,129,701.43/33,422.50
  6. Step 6: Final answer
    x = 25,555.53

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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.