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Finding the Fourth Proportional to 52,747.72, 72,791.64 and 28,548.64

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Solution

The fourth proportional to 52,747.72, 72,791.64 and 28,548.64 is: 39,397.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,747.72 : 72,791.64 = 28,548.64 : x
  2. Step 2: Convert to fraction form
    52,747.72/72,791.64 = 28,548.64/x
  3. Step 3: Cross multiply
    52,747.72x = 72,791.64 × 28,548.64
  4. Step 4: Simplify right side
    52,747.72x = 2,078,102,325.37
  5. Step 5: Solve for x
    x = 2,078,102,325.37/52,747.72
  6. Step 6: Final answer
    x = 39,397.01

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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.