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Finding the Fourth Proportional to 30,410.69, 41,953.72 and 19,072.46

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Solution

The fourth proportional to 30,410.69, 41,953.72 and 19,072.46 is: 26,311.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,410.69 : 41,953.72 = 19,072.46 : x
  2. Step 2: Convert to fraction form
    30,410.69/41,953.72 = 19,072.46/x
  3. Step 3: Cross multiply
    30,410.69x = 41,953.72 × 19,072.46
  4. Step 4: Simplify right side
    30,410.69x = 800,160,793.16
  5. Step 5: Solve for x
    x = 800,160,793.16/30,410.69
  6. Step 6: Final answer
    x = 26,311.83

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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.