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Finding the Fourth Proportional to 50,679.58, 69,937.90 and 28,323.58

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Solution

The fourth proportional to 50,679.58, 69,937.90 and 28,323.58 is: 39,086.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,679.58 : 69,937.90 = 28,323.58 : x
  2. Step 2: Convert to fraction form
    50,679.58/69,937.90 = 28,323.58/x
  3. Step 3: Cross multiply
    50,679.58x = 69,937.90 × 28,323.58
  4. Step 4: Simplify right side
    50,679.58x = 1,980,891,705.68
  5. Step 5: Solve for x
    x = 1,980,891,705.68/50,679.58
  6. Step 6: Final answer
    x = 39,086.58

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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.