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Finding the Fourth Proportional to 8,078.63, 12,117.95 and 2,532.41

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Solution

The fourth proportional to 8,078.63, 12,117.95 and 2,532.41 is: 3,798.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,078.63 : 12,117.95 = 2,532.41 : x
  2. Step 2: Convert to fraction form
    8,078.63/12,117.95 = 2,532.41/x
  3. Step 3: Cross multiply
    8,078.63x = 12,117.95 × 2,532.41
  4. Step 4: Simplify right side
    8,078.63x = 30,687,544.51
  5. Step 5: Solve for x
    x = 30,687,544.51/8,078.63
  6. Step 6: Final answer
    x = 3,798.61

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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.