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Finding the Fourth Proportional to 54,993.63, 75,890.60 and 30,794.82

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Solution

The fourth proportional to 54,993.63, 75,890.60 and 30,794.82 is: 42,496.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,993.63 : 75,890.60 = 30,794.82 : x
  2. Step 2: Convert to fraction form
    54,993.63/75,890.60 = 30,794.82/x
  3. Step 3: Cross multiply
    54,993.63x = 75,890.60 × 30,794.82
  4. Step 4: Simplify right side
    54,993.63x = 2,337,037,216.83
  5. Step 5: Solve for x
    x = 2,337,037,216.83/54,993.63
  6. Step 6: Final answer
    x = 42,496.50

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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.