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Finding the Fourth Proportional to 56,558.52, 78,045.12 and 33,891.48

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Solution

The fourth proportional to 56,558.52, 78,045.12 and 33,891.48 is: 46,766.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,558.52 : 78,045.12 = 33,891.48 : x
  2. Step 2: Convert to fraction form
    56,558.52/78,045.12 = 33,891.48/x
  3. Step 3: Cross multiply
    56,558.52x = 78,045.12 × 33,891.48
  4. Step 4: Simplify right side
    56,558.52x = 2,645,064,623.58
  5. Step 5: Solve for x
    x = 2,645,064,623.58/56,558.52
  6. Step 6: Final answer
    x = 46,766.86

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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.