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Finding the Fourth Proportional to 50,964.94, 70,331.79 and 28,303.99

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Solution

The fourth proportional to 50,964.94, 70,331.79 and 28,303.99 is: 39,059.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,964.94 : 70,331.79 = 28,303.99 : x
  2. Step 2: Convert to fraction form
    50,964.94/70,331.79 = 28,303.99/x
  3. Step 3: Cross multiply
    50,964.94x = 70,331.79 × 28,303.99
  4. Step 4: Simplify right side
    50,964.94x = 1,990,670,280.84
  5. Step 5: Solve for x
    x = 1,990,670,280.84/50,964.94
  6. Step 6: Final answer
    x = 39,059.60

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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.