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Finding the Fourth Proportional to 49,609.40, 74,414.10 and 12,673.40

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Solution

The fourth proportional to 49,609.40, 74,414.10 and 12,673.40 is: 19,010.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,609.40 : 74,414.10 = 12,673.40 : x
  2. Step 2: Convert to fraction form
    49,609.40/74,414.10 = 12,673.40/x
  3. Step 3: Cross multiply
    49,609.40x = 74,414.10 × 12,673.40
  4. Step 4: Simplify right side
    49,609.40x = 943,079,654.94
  5. Step 5: Solve for x
    x = 943,079,654.94/49,609.40
  6. Step 6: Final answer
    x = 19,010.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.