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Finding the Fourth Proportional to 8,672.16, 11,967.84 and 4,895.52

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Solution

The fourth proportional to 8,672.16, 11,967.84 and 4,895.52 is: 6,755.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,672.16 : 11,967.84 = 4,895.52 : x
  2. Step 2: Convert to fraction form
    8,672.16/11,967.84 = 4,895.52/x
  3. Step 3: Cross multiply
    8,672.16x = 11,967.84 × 4,895.52
  4. Step 4: Simplify right side
    8,672.16x = 58,588,800.08
  5. Step 5: Solve for x
    x = 58,588,800.08/8,672.16
  6. Step 6: Final answer
    x = 6,755.96

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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.