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Finding the Fourth Proportional to 57,690.51, 79,620.75 and 33,826.70

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Solution

The fourth proportional to 57,690.51, 79,620.75 and 33,826.70 is: 46,685.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,690.51 : 79,620.75 = 33,826.70 : x
  2. Step 2: Convert to fraction form
    57,690.51/79,620.75 = 33,826.70/x
  3. Step 3: Cross multiply
    57,690.51x = 79,620.75 × 33,826.70
  4. Step 4: Simplify right side
    57,690.51x = 2,693,306,825.92
  5. Step 5: Solve for x
    x = 2,693,306,825.92/57,690.51
  6. Step 6: Final answer
    x = 46,685.44

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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.