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Finding the Fourth Proportional to 51,060.08, 70,469.24 and 28,704.08

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Solution

The fourth proportional to 51,060.08, 70,469.24 and 28,704.08 is: 39,615.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,060.08 : 70,469.24 = 28,704.08 : x
  2. Step 2: Convert to fraction form
    51,060.08/70,469.24 = 28,704.08/x
  3. Step 3: Cross multiply
    51,060.08x = 70,469.24 × 28,704.08
  4. Step 4: Simplify right side
    51,060.08x = 2,022,754,702.50
  5. Step 5: Solve for x
    x = 2,022,754,702.50/51,060.08
  6. Step 6: Final answer
    x = 39,615.19

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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.