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Finding the Fourth Proportional to 50,405.90, 75,619.78 and 15,344.64

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Solution

The fourth proportional to 50,405.90, 75,619.78 and 15,344.64 is: 23,020.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,405.90 : 75,619.78 = 15,344.64 : x
  2. Step 2: Convert to fraction form
    50,405.90/75,619.78 = 15,344.64/x
  3. Step 3: Cross multiply
    50,405.90x = 75,619.78 × 15,344.64
  4. Step 4: Simplify right side
    50,405.90x = 1,160,358,262.62
  5. Step 5: Solve for x
    x = 1,160,358,262.62/50,405.90
  6. Step 6: Final answer
    x = 23,020.29

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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.