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Finding the Fourth Proportional to 47,172, 65,095.68 and 25,951.20

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Solution

The fourth proportional to 47,172, 65,095.68 and 25,951.20 is: 35,811.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,172 : 65,095.68 = 25,951.20 : x
  2. Step 2: Convert to fraction form
    47,172/65,095.68 = 25,951.20/x
  3. Step 3: Cross multiply
    47,172x = 65,095.68 × 25,951.20
  4. Step 4: Simplify right side
    47,172x = 1,689,311,010.82
  5. Step 5: Solve for x
    x = 1,689,311,010.82/47,172
  6. Step 6: Final answer
    x = 35,811.73

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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.