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Finding the Fourth Proportional to 35,939.99, 53,899.59 and 12,247

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Solution

The fourth proportional to 35,939.99, 53,899.59 and 12,247 is: 18,366.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,939.99 : 53,899.59 = 12,247 : x
  2. Step 2: Convert to fraction form
    35,939.99/53,899.59 = 12,247/x
  3. Step 3: Cross multiply
    35,939.99x = 53,899.59 × 12,247
  4. Step 4: Simplify right side
    35,939.99x = 660,108,278.73
  5. Step 5: Solve for x
    x = 660,108,278.73/35,939.99
  6. Step 6: Final answer
    x = 18,366.96

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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.