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Finding the Fourth Proportional to 34,889.67, 48,147.62 and 18,974.79

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Solution

The fourth proportional to 34,889.67, 48,147.62 and 18,974.79 is: 26,185.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,889.67 : 48,147.62 = 18,974.79 : x
  2. Step 2: Convert to fraction form
    34,889.67/48,147.62 = 18,974.79/x
  3. Step 3: Cross multiply
    34,889.67x = 48,147.62 × 18,974.79
  4. Step 4: Simplify right side
    34,889.67x = 913,590,883.63
  5. Step 5: Solve for x
    x = 913,590,883.63/34,889.67
  6. Step 6: Final answer
    x = 26,185.14

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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.