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Finding the Fourth Proportional to 71,656.20, 107,485.35 and 27,285.41

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Solution

The fourth proportional to 71,656.20, 107,485.35 and 27,285.41 is: 40,928.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,656.20 : 107,485.35 = 27,285.41 : x
  2. Step 2: Convert to fraction form
    71,656.20/107,485.35 = 27,285.41/x
  3. Step 3: Cross multiply
    71,656.20x = 107,485.35 × 27,285.41
  4. Step 4: Simplify right side
    71,656.20x = 2,932,781,306.32
  5. Step 5: Solve for x
    x = 2,932,781,306.32/71,656.20
  6. Step 6: Final answer
    x = 40,928.51

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1.5x scale

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.