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Finding the Fourth Proportional to 34,893.46, 48,153.97 and 18,978.93

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Solution

The fourth proportional to 34,893.46, 48,153.97 and 18,978.93 is: 26,191.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,893.46 : 48,153.97 = 18,978.93 : x
  2. Step 2: Convert to fraction form
    34,893.46/48,153.97 = 18,978.93/x
  3. Step 3: Cross multiply
    34,893.46x = 48,153.97 × 18,978.93
  4. Step 4: Simplify right side
    34,893.46x = 913,910,825.85
  5. Step 5: Solve for x
    x = 913,910,825.85/34,893.46
  6. Step 6: Final answer
    x = 26,191.46

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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.