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Finding the Fourth Proportional to 18,003.99, 24,848.03 and 12,984.83

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Solution

The fourth proportional to 18,003.99, 24,848.03 and 12,984.83 is: 17,920.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,003.99 : 24,848.03 = 12,984.83 : x
  2. Step 2: Convert to fraction form
    18,003.99/24,848.03 = 12,984.83/x
  3. Step 3: Cross multiply
    18,003.99x = 24,848.03 × 12,984.83
  4. Step 4: Simplify right side
    18,003.99x = 322,647,445.38
  5. Step 5: Solve for x
    x = 322,647,445.38/18,003.99
  6. Step 6: Final answer
    x = 17,920.89

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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.