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Finding the Fourth Proportional to 18,401.37, 27,602.06 and 5,074.46

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Solution

The fourth proportional to 18,401.37, 27,602.06 and 5,074.46 is: 7,611.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,401.37 : 27,602.06 = 5,074.46 : x
  2. Step 2: Convert to fraction form
    18,401.37/27,602.06 = 5,074.46/x
  3. Step 3: Cross multiply
    18,401.37x = 27,602.06 × 5,074.46
  4. Step 4: Simplify right side
    18,401.37x = 140,065,386.01
  5. Step 5: Solve for x
    x = 140,065,386.01/18,401.37
  6. Step 6: Final answer
    x = 7,611.68

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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.