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Finding the Fourth Proportional to 50,679.84, 69,937.68 and 28,323.84

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Solution

The fourth proportional to 50,679.84, 69,937.68 and 28,323.84 is: 39,086.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,679.84 : 69,937.68 = 28,323.84 : x
  2. Step 2: Convert to fraction form
    50,679.84/69,937.68 = 28,323.84/x
  3. Step 3: Cross multiply
    50,679.84x = 69,937.68 × 28,323.84
  4. Step 4: Simplify right side
    50,679.84x = 1,980,903,658.29
  5. Step 5: Solve for x
    x = 1,980,903,658.29/50,679.84
  6. Step 6: Final answer
    x = 39,086.62

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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.