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Finding the Fourth Proportional to 59,021.40, 81,449.22 and 33,879

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Solution

The fourth proportional to 59,021.40, 81,449.22 and 33,879 is: 46,752.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,021.40 : 81,449.22 = 33,879 : x
  2. Step 2: Convert to fraction form
    59,021.40/81,449.22 = 33,879/x
  3. Step 3: Cross multiply
    59,021.40x = 81,449.22 × 33,879
  4. Step 4: Simplify right side
    59,021.40x = 2,759,418,124.38
  5. Step 5: Solve for x
    x = 2,759,418,124.38/59,021.40
  6. Step 6: Final answer
    x = 46,752.84

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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.