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Finding the Fourth Proportional to 34,883.87, 48,137.76 and 18,968.31

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Solution

The fourth proportional to 34,883.87, 48,137.76 and 18,968.31 is: 26,175.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,883.87 : 48,137.76 = 18,968.31 : x
  2. Step 2: Convert to fraction form
    34,883.87/48,137.76 = 18,968.31/x
  3. Step 3: Cross multiply
    34,883.87x = 48,137.76 × 18,968.31
  4. Step 4: Simplify right side
    34,883.87x = 913,091,954.39
  5. Step 5: Solve for x
    x = 913,091,954.39/34,883.87
  6. Step 6: Final answer
    x = 26,175.19

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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.