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Finding the Fourth Proportional to 57,794.25, 79,756.16 and 31,298.25

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Solution

The fourth proportional to 57,794.25, 79,756.16 and 31,298.25 is: 43,191.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,794.25 : 79,756.16 = 31,298.25 : x
  2. Step 2: Convert to fraction form
    57,794.25/79,756.16 = 31,298.25/x
  3. Step 3: Cross multiply
    57,794.25x = 79,756.16 × 31,298.25
  4. Step 4: Simplify right side
    57,794.25x = 2,496,228,078.23
  5. Step 5: Solve for x
    x = 2,496,228,078.23/57,794.25
  6. Step 6: Final answer
    x = 43,191.63

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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.