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Finding the Fourth Proportional to 8,734.61, 12,054.39 and 4,958.42

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Solution

The fourth proportional to 8,734.61, 12,054.39 and 4,958.42 is: 6,842.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,734.61 : 12,054.39 = 4,958.42 : x
  2. Step 2: Convert to fraction form
    8,734.61/12,054.39 = 4,958.42/x
  3. Step 3: Cross multiply
    8,734.61x = 12,054.39 × 4,958.42
  4. Step 4: Simplify right side
    8,734.61x = 59,770,728.46
  5. Step 5: Solve for x
    x = 59,770,728.46/8,734.61
  6. Step 6: Final answer
    x = 6,842.98

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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.