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Finding the Fourth Proportional to 52,955.88, 79,472.04 and 30,739.60

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Solution

The fourth proportional to 52,955.88, 79,472.04 and 30,739.60 is: 46,131.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,955.88 : 79,472.04 = 30,739.60 : x
  2. Step 2: Convert to fraction form
    52,955.88/79,472.04 = 30,739.60/x
  3. Step 3: Cross multiply
    52,955.88x = 79,472.04 × 30,739.60
  4. Step 4: Simplify right side
    52,955.88x = 2,442,938,720.78
  5. Step 5: Solve for x
    x = 2,442,938,720.78/52,955.88
  6. Step 6: Final answer
    x = 46,131.59

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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.