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Finding the Fourth Proportional to 17,967,344.70, 26,951,017.05 and 12,865,511.10

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Solution

The fourth proportional to 17,967,344.70, 26,951,017.05 and 12,865,511.10 is: 19,298,266.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,967,344.70 : 26,951,017.05 = 12,865,511.10 : x
  2. Step 2: Convert to fraction form
    17,967,344.70/26,951,017.05 = 12,865,511.10/x
  3. Step 3: Cross multiply
    17,967,344.70x = 26,951,017.05 × 12,865,511.10
  4. Step 4: Simplify right side
    17,967,344.70x = 346,738,609,013,064.25
  5. Step 5: Solve for x
    x = 346,738,609,013,064.25/17,967,344.70
  6. Step 6: Final answer
    x = 19,298,266.65

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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.