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Finding the Fourth Proportional to 50,355, 69,490.02 and 27,999

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Solution

The fourth proportional to 50,355, 69,490.02 and 27,999 is: 38,638.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,355 : 69,490.02 = 27,999 : x
  2. Step 2: Convert to fraction form
    50,355/69,490.02 = 27,999/x
  3. Step 3: Cross multiply
    50,355x = 69,490.02 × 27,999
  4. Step 4: Simplify right side
    50,355x = 1,945,651,069.98
  5. Step 5: Solve for x
    x = 1,945,651,069.98/50,355
  6. Step 6: Final answer
    x = 38,638.69

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1.5x scale

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.