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Finding the Fourth Proportional to 50,639.64, 69,784.02 and 36,465.72

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Solution

The fourth proportional to 50,639.64, 69,784.02 and 36,465.72 is: 50,251.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,639.64 : 69,784.02 = 36,465.72 : x
  2. Step 2: Convert to fraction form
    50,639.64/69,784.02 = 36,465.72/x
  3. Step 3: Cross multiply
    50,639.64x = 69,784.02 × 36,465.72
  4. Step 4: Simplify right side
    50,639.64x = 2,544,724,533.79
  5. Step 5: Solve for x
    x = 2,544,724,533.79/50,639.64
  6. Step 6: Final answer
    x = 50,251.63

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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.