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Finding the Fourth Proportional to 56,352.75, 84,558.29 and 28,650.75

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Solution

The fourth proportional to 56,352.75, 84,558.29 and 28,650.75 is: 42,990.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,352.75 : 84,558.29 = 28,650.75 : x
  2. Step 2: Convert to fraction form
    56,352.75/84,558.29 = 28,650.75/x
  3. Step 3: Cross multiply
    56,352.75x = 84,558.29 × 28,650.75
  4. Step 4: Simplify right side
    56,352.75x = 2,422,658,283.96
  5. Step 5: Solve for x
    x = 2,422,658,283.96/56,352.75
  6. Step 6: Final answer
    x = 42,990.95

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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.