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Finding the Fourth Proportional to 41,288.64, 56,978.01 and 22,425.90

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Solution

The fourth proportional to 41,288.64, 56,978.01 and 22,425.90 is: 30,947.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,288.64 : 56,978.01 = 22,425.90 : x
  2. Step 2: Convert to fraction form
    41,288.64/56,978.01 = 22,425.90/x
  3. Step 3: Cross multiply
    41,288.64x = 56,978.01 × 22,425.90
  4. Step 4: Simplify right side
    41,288.64x = 1,277,783,154.46
  5. Step 5: Solve for x
    x = 1,277,783,154.46/41,288.64
  6. Step 6: Final answer
    x = 30,947.57

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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.