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Finding the Fourth Proportional to 18,704,583.30, 28,056,874.95 and 18,144,711.30

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Solution

The fourth proportional to 18,704,583.30, 28,056,874.95 and 18,144,711.30 is: 27,217,066.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,704,583.30 : 28,056,874.95 = 18,144,711.30 : x
  2. Step 2: Convert to fraction form
    18,704,583.30/28,056,874.95 = 18,144,711.30/x
  3. Step 3: Cross multiply
    18,704,583.30x = 28,056,874.95 × 18,144,711.30
  4. Step 4: Simplify right side
    18,704,583.30x = 509,083,895,947,951.94
  5. Step 5: Solve for x
    x = 509,083,895,947,951.94/18,704,583.30
  6. Step 6: Final answer
    x = 27,217,066.95

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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.