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Finding the Fourth Proportional to 31,794.23, 43,878.03 and 17,647.31

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Solution

The fourth proportional to 31,794.23, 43,878.03 and 17,647.31 is: 24,354.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,794.23 : 43,878.03 = 17,647.31 : x
  2. Step 2: Convert to fraction form
    31,794.23/43,878.03 = 17,647.31/x
  3. Step 3: Cross multiply
    31,794.23x = 43,878.03 × 17,647.31
  4. Step 4: Simplify right side
    31,794.23x = 774,329,197.60
  5. Step 5: Solve for x
    x = 774,329,197.60/31,794.23
  6. Step 6: Final answer
    x = 24,354.39

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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.