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Finding the Fourth Proportional to 57,277, 79,042.31 and 32,126.50

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Solution

The fourth proportional to 57,277, 79,042.31 and 32,126.50 is: 44,334.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,277 : 79,042.31 = 32,126.50 : x
  2. Step 2: Convert to fraction form
    57,277/79,042.31 = 32,126.50/x
  3. Step 3: Cross multiply
    57,277x = 79,042.31 × 32,126.50
  4. Step 4: Simplify right side
    57,277x = 2,539,352,772.22
  5. Step 5: Solve for x
    x = 2,539,352,772.22/57,277
  6. Step 6: Final answer
    x = 44,334.60

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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.