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Finding the Fourth Proportional to 8,752.95, 12,078.66 and 4,773.92

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Solution

The fourth proportional to 8,752.95, 12,078.66 and 4,773.92 is: 6,587.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,752.95 : 12,078.66 = 4,773.92 : x
  2. Step 2: Convert to fraction form
    8,752.95/12,078.66 = 4,773.92/x
  3. Step 3: Cross multiply
    8,752.95x = 12,078.66 × 4,773.92
  4. Step 4: Simplify right side
    8,752.95x = 57,662,496.15
  5. Step 5: Solve for x
    x = 57,662,496.15/8,752.95
  6. Step 6: Final answer
    x = 6,587.78

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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.