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Finding the Fourth Proportional to 8,392.02, 12,585.42 and 3,054.57

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Solution

The fourth proportional to 8,392.02, 12,585.42 and 3,054.57 is: 4,580.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,392.02 : 12,585.42 = 3,054.57 : x
  2. Step 2: Convert to fraction form
    8,392.02/12,585.42 = 3,054.57/x
  3. Step 3: Cross multiply
    8,392.02x = 12,585.42 × 3,054.57
  4. Step 4: Simplify right side
    8,392.02x = 38,443,046.37
  5. Step 5: Solve for x
    x = 38,443,046.37/8,392.02
  6. Step 6: Final answer
    x = 4,580.90

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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.