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Finding the Fourth Proportional to 8,752.66, 12,078.92 and 4,773.85

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Solution

The fourth proportional to 8,752.66, 12,078.92 and 4,773.85 is: 6,588.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,752.66 : 12,078.92 = 4,773.85 : x
  2. Step 2: Convert to fraction form
    8,752.66/12,078.92 = 4,773.85/x
  3. Step 3: Cross multiply
    8,752.66x = 12,078.92 × 4,773.85
  4. Step 4: Simplify right side
    8,752.66x = 57,662,952.24
  5. Step 5: Solve for x
    x = 57,662,952.24/8,752.66
  6. Step 6: Final answer
    x = 6,588.05

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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.