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Finding the Fourth Proportional to 8,699.54, 12,005.26 and 4,922.64

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Solution

The fourth proportional to 8,699.54, 12,005.26 and 4,922.64 is: 6,793.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,699.54 : 12,005.26 = 4,922.64 : x
  2. Step 2: Convert to fraction form
    8,699.54/12,005.26 = 4,922.64/x
  3. Step 3: Cross multiply
    8,699.54x = 12,005.26 × 4,922.64
  4. Step 4: Simplify right side
    8,699.54x = 59,097,573.09
  5. Step 5: Solve for x
    x = 59,097,573.09/8,699.54
  6. Step 6: Final answer
    x = 6,793.18

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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.