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Finding the Fourth Proportional to 8,240.94, 12,361.95 and 3,045.06

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Solution

The fourth proportional to 8,240.94, 12,361.95 and 3,045.06 is: 4,567.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,240.94 : 12,361.95 = 3,045.06 : x
  2. Step 2: Convert to fraction form
    8,240.94/12,361.95 = 3,045.06/x
  3. Step 3: Cross multiply
    8,240.94x = 12,361.95 × 3,045.06
  4. Step 4: Simplify right side
    8,240.94x = 37,642,879.47
  5. Step 5: Solve for x
    x = 37,642,879.47/8,240.94
  6. Step 6: Final answer
    x = 4,567.79

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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.