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Finding the Fourth Proportional to 28,843,896.04, 39,804,585.52 and 15,791,983.94

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Solution

The fourth proportional to 28,843,896.04, 39,804,585.52 and 15,791,983.94 is: 21,792,942.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,843,896.04 : 39,804,585.52 = 15,791,983.94 : x
  2. Step 2: Convert to fraction form
    28,843,896.04/39,804,585.52 = 15,791,983.94/x
  3. Step 3: Cross multiply
    28,843,896.04x = 39,804,585.52 × 15,791,983.94
  4. Step 4: Simplify right side
    28,843,896.04x = 628,593,375,270,196.62
  5. Step 5: Solve for x
    x = 628,593,375,270,196.62/28,843,896.04
  6. Step 6: Final answer
    x = 21,792,942.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.