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Finding the Fourth Proportional to 18,099.99, 27,150.53 and 6,852.87

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Solution

The fourth proportional to 18,099.99, 27,150.53 and 6,852.87 is: 10,279.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,099.99 : 27,150.53 = 6,852.87 : x
  2. Step 2: Convert to fraction form
    18,099.99/27,150.53 = 6,852.87/x
  3. Step 3: Cross multiply
    18,099.99x = 27,150.53 × 6,852.87
  4. Step 4: Simplify right side
    18,099.99x = 186,059,018.26
  5. Step 5: Solve for x
    x = 186,059,018.26/18,099.99
  6. Step 6: Final answer
    x = 10,279.51

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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.