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Finding the Fourth Proportional to 40,562.85, 55,978.92 and 22,658.25

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Solution

The fourth proportional to 40,562.85, 55,978.92 and 22,658.25 is: 31,269.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,562.85 : 55,978.92 = 22,658.25 : x
  2. Step 2: Convert to fraction form
    40,562.85/55,978.92 = 22,658.25/x
  3. Step 3: Cross multiply
    40,562.85x = 55,978.92 × 22,658.25
  4. Step 4: Simplify right side
    40,562.85x = 1,268,384,364.09
  5. Step 5: Solve for x
    x = 1,268,384,364.09/40,562.85
  6. Step 6: Final answer
    x = 31,269.61

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1.5x scale

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.