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Finding the Fourth Proportional to 8,673.53, 11,969.45 and 4,694.61

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Solution

The fourth proportional to 8,673.53, 11,969.45 and 4,694.61 is: 6,478.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,673.53 : 11,969.45 = 4,694.61 : x
  2. Step 2: Convert to fraction form
    8,673.53/11,969.45 = 4,694.61/x
  3. Step 3: Cross multiply
    8,673.53x = 11,969.45 × 4,694.61
  4. Step 4: Simplify right side
    8,673.53x = 56,191,899.66
  5. Step 5: Solve for x
    x = 56,191,899.66/8,673.53
  6. Step 6: Final answer
    x = 6,478.55

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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.