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Finding the Fourth Proportional to 25,699.99, 38,495.27 and 12,353.42

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Solution

The fourth proportional to 25,699.99, 38,495.27 and 12,353.42 is: 18,503.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,699.99 : 38,495.27 = 12,353.42 : x
  2. Step 2: Convert to fraction form
    25,699.99/38,495.27 = 12,353.42/x
  3. Step 3: Cross multiply
    25,699.99x = 38,495.27 × 12,353.42
  4. Step 4: Simplify right side
    25,699.99x = 475,548,076.73
  5. Step 5: Solve for x
    x = 475,548,076.73/25,699.99
  6. Step 6: Final answer
    x = 18,503.83

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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.