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Finding the Fourth Proportional to 18,039.99, 27,063.84 and 10,649.96

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Solution

The fourth proportional to 18,039.99, 27,063.84 and 10,649.96 is: 15,977.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,039.99 : 27,063.84 = 10,649.96 : x
  2. Step 2: Convert to fraction form
    18,039.99/27,063.84 = 10,649.96/x
  3. Step 3: Cross multiply
    18,039.99x = 27,063.84 × 10,649.96
  4. Step 4: Simplify right side
    18,039.99x = 288,228,678.13
  5. Step 5: Solve for x
    x = 288,228,678.13/18,039.99
  6. Step 6: Final answer
    x = 15,977.21

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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.