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Finding the Fourth Proportional to 18,462.45, 27,690.93 and 9,099.93

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Solution

The fourth proportional to 18,462.45, 27,690.93 and 9,099.93 is: 13,648.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,462.45 : 27,690.93 = 9,099.93 : x
  2. Step 2: Convert to fraction form
    18,462.45/27,690.93 = 9,099.93/x
  3. Step 3: Cross multiply
    18,462.45x = 27,690.93 × 9,099.93
  4. Step 4: Simplify right side
    18,462.45x = 251,985,524.63
  5. Step 5: Solve for x
    x = 251,985,524.63/18,462.45
  6. Step 6: Final answer
    x = 13,648.54

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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.