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Finding the Fourth Proportional to 30,081, 41,511.86 and 16,653.17

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Solution

The fourth proportional to 30,081, 41,511.86 and 16,653.17 is: 22,981.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,081 : 41,511.86 = 16,653.17 : x
  2. Step 2: Convert to fraction form
    30,081/41,511.86 = 16,653.17/x
  3. Step 3: Cross multiply
    30,081x = 41,511.86 × 16,653.17
  4. Step 4: Simplify right side
    30,081x = 691,303,770.77
  5. Step 5: Solve for x
    x = 691,303,770.77/30,081
  6. Step 6: Final answer
    x = 22,981.41

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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.