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Finding the Fourth Proportional to 8,672.36, 13,007.93 and 4,962.96

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Solution

The fourth proportional to 8,672.36, 13,007.93 and 4,962.96 is: 7,444.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,672.36 : 13,007.93 = 4,962.96 : x
  2. Step 2: Convert to fraction form
    8,672.36/13,007.93 = 4,962.96/x
  3. Step 3: Cross multiply
    8,672.36x = 13,007.93 × 4,962.96
  4. Step 4: Simplify right side
    8,672.36x = 64,557,811.46
  5. Step 5: Solve for x
    x = 64,557,811.46/8,672.36
  6. Step 6: Final answer
    x = 7,444.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.