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Finding the Fourth Proportional to 18,401.42, 27,602.01 and 11,007.95

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Solution

The fourth proportional to 18,401.42, 27,602.01 and 11,007.95 is: 16,511.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,401.42 : 27,602.01 = 11,007.95 : x
  2. Step 2: Convert to fraction form
    18,401.42/27,602.01 = 11,007.95/x
  3. Step 3: Cross multiply
    18,401.42x = 27,602.01 × 11,007.95
  4. Step 4: Simplify right side
    18,401.42x = 303,841,407.97
  5. Step 5: Solve for x
    x = 303,841,407.97/18,401.42
  6. Step 6: Final answer
    x = 16,511.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.