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Finding the Fourth Proportional to 18,435.77, 27,653.76 and 4,584.77

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Solution

The fourth proportional to 18,435.77, 27,653.76 and 4,584.77 is: 6,877.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,435.77 : 27,653.76 = 4,584.77 : x
  2. Step 2: Convert to fraction form
    18,435.77/27,653.76 = 4,584.77/x
  3. Step 3: Cross multiply
    18,435.77x = 27,653.76 × 4,584.77
  4. Step 4: Simplify right side
    18,435.77x = 126,786,129.24
  5. Step 5: Solve for x
    x = 126,786,129.24/18,435.77
  6. Step 6: Final answer
    x = 6,877.18

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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.