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Finding the Fourth Proportional to 19,404,872.90, 29,082,814.95 and 9,822,896.90

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Solution

The fourth proportional to 19,404,872.90, 29,082,814.95 and 9,822,896.90 is: 14,721,946.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,404,872.90 : 29,082,814.95 = 9,822,896.90 : x
  2. Step 2: Convert to fraction form
    19,404,872.90/29,082,814.95 = 9,822,896.90/x
  3. Step 3: Cross multiply
    19,404,872.90x = 29,082,814.95 × 9,822,896.90
  4. Step 4: Simplify right side
    19,404,872.90x = 285,677,492,815,628.69
  5. Step 5: Solve for x
    x = 285,677,492,815,628.69/19,404,872.90
  6. Step 6: Final answer
    x = 14,721,946.10

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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.