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Finding the Fourth Proportional to 34,861.58, 48,108.93 and 18,945.99

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Solution

The fourth proportional to 34,861.58, 48,108.93 and 18,945.99 is: 26,145.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,861.58 : 48,108.93 = 18,945.99 : x
  2. Step 2: Convert to fraction form
    34,861.58/48,108.93 = 18,945.99/x
  3. Step 3: Cross multiply
    34,861.58x = 48,108.93 × 18,945.99
  4. Step 4: Simplify right side
    34,861.58x = 911,471,306.69
  5. Step 5: Solve for x
    x = 911,471,306.69/34,861.58
  6. Step 6: Final answer
    x = 26,145.44

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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.