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Finding the Fourth Proportional to 50,719.74, 76,087.80 and 15,651.18

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Solution

The fourth proportional to 50,719.74, 76,087.80 and 15,651.18 is: 23,479.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,719.74 : 76,087.80 = 15,651.18 : x
  2. Step 2: Convert to fraction form
    50,719.74/76,087.80 = 15,651.18/x
  3. Step 3: Cross multiply
    50,719.74x = 76,087.80 × 15,651.18
  4. Step 4: Simplify right side
    50,719.74x = 1,190,863,853.60
  5. Step 5: Solve for x
    x = 1,190,863,853.60/50,719.74
  6. Step 6: Final answer
    x = 23,479.30

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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.