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Finding the Fourth Proportional to 50,679.64, 69,937.91 and 28,323.64

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Solution

The fourth proportional to 50,679.64, 69,937.91 and 28,323.64 is: 39,086.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,679.64 : 69,937.91 = 28,323.64 : x
  2. Step 2: Convert to fraction form
    50,679.64/69,937.91 = 28,323.64/x
  3. Step 3: Cross multiply
    50,679.64x = 69,937.91 × 28,323.64
  4. Step 4: Simplify right side
    50,679.64x = 1,980,896,185.19
  5. Step 5: Solve for x
    x = 1,980,896,185.19/50,679.64
  6. Step 6: Final answer
    x = 39,086.63

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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.