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Finding the Fourth Proportional to 50,990.56, 70,338.64 and 47,382.32

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Solution

The fourth proportional to 50,990.56, 70,338.64 and 47,382.32 is: 65,361.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,990.56 : 70,338.64 = 47,382.32 : x
  2. Step 2: Convert to fraction form
    50,990.56/70,338.64 = 47,382.32/x
  3. Step 3: Cross multiply
    50,990.56x = 70,338.64 × 47,382.32
  4. Step 4: Simplify right side
    50,990.56x = 3,332,807,948.84
  5. Step 5: Solve for x
    x = 3,332,807,948.84/50,990.56
  6. Step 6: Final answer
    x = 65,361.27

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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.