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Finding the Fourth Proportional to 49,603.44, 68,433.36 and 28,371.36

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Solution

The fourth proportional to 49,603.44, 68,433.36 and 28,371.36 is: 39,141.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,603.44 : 68,433.36 = 28,371.36 : x
  2. Step 2: Convert to fraction form
    49,603.44/68,433.36 = 28,371.36/x
  3. Step 3: Cross multiply
    49,603.44x = 68,433.36 × 28,371.36
  4. Step 4: Simplify right side
    49,603.44x = 1,941,547,492.57
  5. Step 5: Solve for x
    x = 1,941,547,492.57/49,603.44
  6. Step 6: Final answer
    x = 39,141.39

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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.