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Finding the Fourth Proportional to 56,908.70, 85,411.65 and 25,367.30

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Solution

The fourth proportional to 56,908.70, 85,411.65 and 25,367.30 is: 38,072.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,908.70 : 85,411.65 = 25,367.30 : x
  2. Step 2: Convert to fraction form
    56,908.70/85,411.65 = 25,367.30/x
  3. Step 3: Cross multiply
    56,908.70x = 85,411.65 × 25,367.30
  4. Step 4: Simplify right side
    56,908.70x = 2,166,662,949.05
  5. Step 5: Solve for x
    x = 2,166,662,949.05/56,908.70
  6. Step 6: Final answer
    x = 38,072.61

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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.