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Finding the Fourth Proportional to 50,496.84, 69,674.40 and 28,985.28

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Solution

The fourth proportional to 50,496.84, 69,674.40 and 28,985.28 is: 39,993.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,496.84 : 69,674.40 = 28,985.28 : x
  2. Step 2: Convert to fraction form
    50,496.84/69,674.40 = 28,985.28/x
  3. Step 3: Cross multiply
    50,496.84x = 69,674.40 × 28,985.28
  4. Step 4: Simplify right side
    50,496.84x = 2,019,531,992.83
  5. Step 5: Solve for x
    x = 2,019,531,992.83/50,496.84
  6. Step 6: Final answer
    x = 39,993.24

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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.