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Finding the Fourth Proportional to 18,059.68, 27,076.56 and 7,665.76

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Solution

The fourth proportional to 18,059.68, 27,076.56 and 7,665.76 is: 11,493.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,059.68 : 27,076.56 = 7,665.76 : x
  2. Step 2: Convert to fraction form
    18,059.68/27,076.56 = 7,665.76/x
  3. Step 3: Cross multiply
    18,059.68x = 27,076.56 × 7,665.76
  4. Step 4: Simplify right side
    18,059.68x = 207,562,410.59
  5. Step 5: Solve for x
    x = 207,562,410.59/18,059.68
  6. Step 6: Final answer
    x = 11,493.14

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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.