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Finding the Fourth Proportional to 56,893.52, 85,393.12 and 28,833.36

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Solution

The fourth proportional to 56,893.52, 85,393.12 and 28,833.36 is: 43,276.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,893.52 : 85,393.12 = 28,833.36 : x
  2. Step 2: Convert to fraction form
    56,893.52/85,393.12 = 28,833.36/x
  3. Step 3: Cross multiply
    56,893.52x = 85,393.12 × 28,833.36
  4. Step 4: Simplify right side
    56,893.52x = 2,462,170,570.48
  5. Step 5: Solve for x
    x = 2,462,170,570.48/56,893.52
  6. Step 6: Final answer
    x = 43,276.82

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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.