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Finding the Fourth Proportional to 4,671.88, 6,447.20 and 2,576.00

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Solution

The fourth proportional to 4,671.88, 6,447.20 and 2,576.00 is: 3,554.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,671.88 : 6,447.20 = 2,576.00 : x
  2. Step 2: Convert to fraction form
    4,671.88/6,447.20 = 2,576.00/x
  3. Step 3: Cross multiply
    4,671.88x = 6,447.20 × 2,576.00
  4. Step 4: Simplify right side
    4,671.88x = 16,607,990.44
  5. Step 5: Solve for x
    x = 16,607,990.44/4,671.88
  6. Step 6: Final answer
    x = 3,554.89

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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.