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Finding the Fourth Proportional to 18,099.65, 24,992.73 and 13,615.63

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Solution

The fourth proportional to 18,099.65, 24,992.73 and 13,615.63 is: 18,801.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,099.65 : 24,992.73 = 13,615.63 : x
  2. Step 2: Convert to fraction form
    18,099.65/24,992.73 = 13,615.63/x
  3. Step 3: Cross multiply
    18,099.65x = 24,992.73 × 13,615.63
  4. Step 4: Simplify right side
    18,099.65x = 340,291,764.37
  5. Step 5: Solve for x
    x = 340,291,764.37/18,099.65
  6. Step 6: Final answer
    x = 18,801.01

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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.