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Finding the Fourth Proportional to 8,752.68, 12,078.72 and 5,026.68

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Solution

The fourth proportional to 8,752.68, 12,078.72 and 5,026.68 is: 6,936.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,752.68 : 12,078.72 = 5,026.68 : x
  2. Step 2: Convert to fraction form
    8,752.68/12,078.72 = 5,026.68/x
  3. Step 3: Cross multiply
    8,752.68x = 12,078.72 × 5,026.68
  4. Step 4: Simplify right side
    8,752.68x = 60,715,860.25
  5. Step 5: Solve for x
    x = 60,715,860.25/8,752.68
  6. Step 6: Final answer
    x = 6,936.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.