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Finding the Fourth Proportional to 50,388, 69,535.44 and 28,032

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Solution

The fourth proportional to 50,388, 69,535.44 and 28,032 is: 38,684.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,388 : 69,535.44 = 28,032 : x
  2. Step 2: Convert to fraction form
    50,388/69,535.44 = 28,032/x
  3. Step 3: Cross multiply
    50,388x = 69,535.44 × 28,032
  4. Step 4: Simplify right side
    50,388x = 1,949,217,454.08
  5. Step 5: Solve for x
    x = 1,949,217,454.08/50,388
  6. Step 6: Final answer
    x = 38,684.16

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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.