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Finding the Fourth Proportional to 34,900.86, 48,163.34 and 18,985.41

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Solution

The fourth proportional to 34,900.86, 48,163.34 and 18,985.41 is: 26,199.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,900.86 : 48,163.34 = 18,985.41 : x
  2. Step 2: Convert to fraction form
    34,900.86/48,163.34 = 18,985.41/x
  3. Step 3: Cross multiply
    34,900.86x = 48,163.34 × 18,985.41
  4. Step 4: Simplify right side
    34,900.86x = 914,400,756.87
  5. Step 5: Solve for x
    x = 914,400,756.87/34,900.86
  6. Step 6: Final answer
    x = 26,199.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.