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Finding the Fourth Proportional to 18,863,530.81, 28,295,260.89 and 5,910,673.07

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Solution

The fourth proportional to 18,863,530.81, 28,295,260.89 and 5,910,673.07 is: 8,865,998.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,863,530.81 : 28,295,260.89 = 5,910,673.07 : x
  2. Step 2: Convert to fraction form
    18,863,530.81/28,295,260.89 = 5,910,673.07/x
  3. Step 3: Cross multiply
    18,863,530.81x = 28,295,260.89 × 5,910,673.07
  4. Step 4: Simplify right side
    18,863,530.81x = 167,244,036,675,276.78
  5. Step 5: Solve for x
    x = 167,244,036,675,276.78/18,863,530.81
  6. Step 6: Final answer
    x = 8,865,998.54

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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.