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Finding the Fourth Proportional to 52,791.48, 79,120.80 and 37,720.08

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Solution

The fourth proportional to 52,791.48, 79,120.80 and 37,720.08 is: 56,532.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,791.48 : 79,120.80 = 37,720.08 : x
  2. Step 2: Convert to fraction form
    52,791.48/79,120.80 = 37,720.08/x
  3. Step 3: Cross multiply
    52,791.48x = 79,120.80 × 37,720.08
  4. Step 4: Simplify right side
    52,791.48x = 2,984,442,905.66
  5. Step 5: Solve for x
    x = 2,984,442,905.66/52,791.48
  6. Step 6: Final answer
    x = 56,532.66

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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.