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Finding the Fourth Proportional to 50,271, 69,373.98 and 27,915

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Solution

The fourth proportional to 50,271, 69,373.98 and 27,915 is: 38,522.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,271 : 69,373.98 = 27,915 : x
  2. Step 2: Convert to fraction form
    50,271/69,373.98 = 27,915/x
  3. Step 3: Cross multiply
    50,271x = 69,373.98 × 27,915
  4. Step 4: Simplify right side
    50,271x = 1,936,574,651.70
  5. Step 5: Solve for x
    x = 1,936,574,651.70/50,271
  6. Step 6: Final answer
    x = 38,522.70

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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.