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Finding the Fourth Proportional to 22,093.40, 30,489.95 and 12,661.98

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Solution

The fourth proportional to 22,093.40, 30,489.95 and 12,661.98 is: 17,474.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,093.40 : 30,489.95 = 12,661.98 : x
  2. Step 2: Convert to fraction form
    22,093.40/30,489.95 = 12,661.98/x
  3. Step 3: Cross multiply
    22,093.40x = 30,489.95 × 12,661.98
  4. Step 4: Simplify right side
    22,093.40x = 386,063,168.76
  5. Step 5: Solve for x
    x = 386,063,168.76/22,093.40
  6. Step 6: Final answer
    x = 17,474.14

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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.