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Finding the Fourth Proportional to 19,956,891.90, 29,935,337.85 and 17,804,555.85

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Solution

The fourth proportional to 19,956,891.90, 29,935,337.85 and 17,804,555.85 is: 26,706,833.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,956,891.90 : 29,935,337.85 = 17,804,555.85 : x
  2. Step 2: Convert to fraction form
    19,956,891.90/29,935,337.85 = 17,804,555.85/x
  3. Step 3: Cross multiply
    19,956,891.90x = 29,935,337.85 × 17,804,555.85
  4. Step 4: Simplify right side
    19,956,891.90x = 532,985,394,638,944
  5. Step 5: Solve for x
    x = 532,985,394,638,944/19,956,891.90
  6. Step 6: Final answer
    x = 26,706,833.78

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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.