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Finding the Fourth Proportional to 6,159.65, 8,503.92 and 3,923.42

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Solution

The fourth proportional to 6,159.65, 8,503.92 and 3,923.42 is: 5,416.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,159.65 : 8,503.92 = 3,923.42 : x
  2. Step 2: Convert to fraction form
    6,159.65/8,503.92 = 3,923.42/x
  3. Step 3: Cross multiply
    6,159.65x = 8,503.92 × 3,923.42
  4. Step 4: Simplify right side
    6,159.65x = 33,364,407.29
  5. Step 5: Solve for x
    x = 33,364,407.29/6,159.65
  6. Step 6: Final answer
    x = 5,416.61

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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.