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Finding the Fourth Proportional to 18,406.79, 27,610.18 and 4,555.79

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Solution

The fourth proportional to 18,406.79, 27,610.18 and 4,555.79 is: 6,833.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,406.79 : 27,610.18 = 4,555.79 : x
  2. Step 2: Convert to fraction form
    18,406.79/27,610.18 = 4,555.79/x
  3. Step 3: Cross multiply
    18,406.79x = 27,610.18 × 4,555.79
  4. Step 4: Simplify right side
    18,406.79x = 125,786,032.50
  5. Step 5: Solve for x
    x = 125,786,032.50/18,406.79
  6. Step 6: Final answer
    x = 6,833.68

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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.