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Finding the Fourth Proportional to 8,752.01, 12,078.49 and 4,976.36

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Solution

The fourth proportional to 8,752.01, 12,078.49 and 4,976.36 is: 6,867.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,752.01 : 12,078.49 = 4,976.36 : x
  2. Step 2: Convert to fraction form
    8,752.01/12,078.49 = 4,976.36/x
  3. Step 3: Cross multiply
    8,752.01x = 12,078.49 × 4,976.36
  4. Step 4: Simplify right side
    8,752.01x = 60,106,854.10
  5. Step 5: Solve for x
    x = 60,106,854.10/8,752.01
  6. Step 6: Final answer
    x = 6,867.78

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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.