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Finding the Fourth Proportional to 58,509.97, 80,743.95 and 31,652.71

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Solution

The fourth proportional to 58,509.97, 80,743.95 and 31,652.71 is: 43,680.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,509.97 : 80,743.95 = 31,652.71 : x
  2. Step 2: Convert to fraction form
    58,509.97/80,743.95 = 31,652.71/x
  3. Step 3: Cross multiply
    58,509.97x = 80,743.95 × 31,652.71
  4. Step 4: Simplify right side
    58,509.97x = 2,555,764,833.60
  5. Step 5: Solve for x
    x = 2,555,764,833.60/58,509.97
  6. Step 6: Final answer
    x = 43,680.84

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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.