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Finding the Fourth Proportional to 50,611.64, 75,921.10 and 19,446.88

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Solution

The fourth proportional to 50,611.64, 75,921.10 and 19,446.88 is: 29,171.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,611.64 : 75,921.10 = 19,446.88 : x
  2. Step 2: Convert to fraction form
    50,611.64/75,921.10 = 19,446.88/x
  3. Step 3: Cross multiply
    50,611.64x = 75,921.10 × 19,446.88
  4. Step 4: Simplify right side
    50,611.64x = 1,476,428,521.17
  5. Step 5: Solve for x
    x = 1,476,428,521.17/50,611.64
  6. Step 6: Final answer
    x = 29,171.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.