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Finding the Fourth Proportional to 50,492.55, 75,738.83 and 15,431.91

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Solution

The fourth proportional to 50,492.55, 75,738.83 and 15,431.91 is: 23,147.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,492.55 : 75,738.83 = 15,431.91 : x
  2. Step 2: Convert to fraction form
    50,492.55/75,738.83 = 15,431.91/x
  3. Step 3: Cross multiply
    50,492.55x = 75,738.83 × 15,431.91
  4. Step 4: Simplify right side
    50,492.55x = 1,168,794,808.07
  5. Step 5: Solve for x
    x = 1,168,794,808.07/50,492.55
  6. Step 6: Final answer
    x = 23,147.87

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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.