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Finding the Fourth Proportional to 22,939,365.89, 31,640,207.99 and 15,096,379.29

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Solution

The fourth proportional to 22,939,365.89, 31,640,207.99 and 15,096,379.29 is: 20,822,396.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,939,365.89 : 31,640,207.99 = 15,096,379.29 : x
  2. Step 2: Convert to fraction form
    22,939,365.89/31,640,207.99 = 15,096,379.29/x
  3. Step 3: Cross multiply
    22,939,365.89x = 31,640,207.99 × 15,096,379.29
  4. Step 4: Simplify right side
    22,939,365.89x = 477,652,580,631,528.50
  5. Step 5: Solve for x
    x = 477,652,580,631,528.50/22,939,365.89
  6. Step 6: Final answer
    x = 20,822,396.88

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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.