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Finding the Fourth Proportional to 30,936.99, 46,345.78 and 18,466.99

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Solution

The fourth proportional to 30,936.99, 46,345.78 and 18,466.99 is: 27,664.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,936.99 : 46,345.78 = 18,466.99 : x
  2. Step 2: Convert to fraction form
    30,936.99/46,345.78 = 18,466.99/x
  3. Step 3: Cross multiply
    30,936.99x = 46,345.78 × 18,466.99
  4. Step 4: Simplify right side
    30,936.99x = 855,867,055.80
  5. Step 5: Solve for x
    x = 855,867,055.80/30,936.99
  6. Step 6: Final answer
    x = 27,664.85

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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.