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Finding the Fourth Proportional to 50,754.61, 76,139.21 and 15,697

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Solution

The fourth proportional to 50,754.61, 76,139.21 and 15,697 is: 23,547.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,754.61 : 76,139.21 = 15,697 : x
  2. Step 2: Convert to fraction form
    50,754.61/76,139.21 = 15,697/x
  3. Step 3: Cross multiply
    50,754.61x = 76,139.21 × 15,697
  4. Step 4: Simplify right side
    50,754.61x = 1,195,157,179.37
  5. Step 5: Solve for x
    x = 1,195,157,179.37/50,754.61
  6. Step 6: Final answer
    x = 23,547.76

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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.