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Finding the Fourth Proportional to 18,636.94, 27,952.36 and 5,486.24

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Solution

The fourth proportional to 18,636.94, 27,952.36 and 5,486.24 is: 8,228.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,636.94 : 27,952.36 = 5,486.24 : x
  2. Step 2: Convert to fraction form
    18,636.94/27,952.36 = 5,486.24/x
  3. Step 3: Cross multiply
    18,636.94x = 27,952.36 × 5,486.24
  4. Step 4: Simplify right side
    18,636.94x = 153,353,355.53
  5. Step 5: Solve for x
    x = 153,353,355.53/18,636.94
  6. Step 6: Final answer
    x = 8,228.46

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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.