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Finding the Fourth Proportional to 29,994,605.40, 44,991,908.10 and 19,790,938.20

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Solution

The fourth proportional to 29,994,605.40, 44,991,908.10 and 19,790,938.20 is: 29,686,407.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,994,605.40 : 44,991,908.10 = 19,790,938.20 : x
  2. Step 2: Convert to fraction form
    29,994,605.40/44,991,908.10 = 19,790,938.20/x
  3. Step 3: Cross multiply
    29,994,605.40x = 44,991,908.10 × 19,790,938.20
  4. Step 4: Simplify right side
    29,994,605.40x = 890,432,072,707,179.38
  5. Step 5: Solve for x
    x = 890,432,072,707,179.38/29,994,605.40
  6. Step 6: Final answer
    x = 29,686,407.30

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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.