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Finding the Fourth Proportional to 57,509.97, 79,345.44 and 32,354.61

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Solution

The fourth proportional to 57,509.97, 79,345.44 and 32,354.61 is: 44,639.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,509.97 : 79,345.44 = 32,354.61 : x
  2. Step 2: Convert to fraction form
    57,509.97/79,345.44 = 32,354.61/x
  3. Step 3: Cross multiply
    57,509.97x = 79,345.44 × 32,354.61
  4. Step 4: Simplify right side
    57,509.97x = 2,567,190,766.48
  5. Step 5: Solve for x
    x = 2,567,190,766.48/57,509.97
  6. Step 6: Final answer
    x = 44,639.06

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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.