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Finding the Fourth Proportional to 72,167.63, 108,251.58 and 27,815.27

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Solution

The fourth proportional to 72,167.63, 108,251.58 and 27,815.27 is: 41,722.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,167.63 : 108,251.58 = 27,815.27 : x
  2. Step 2: Convert to fraction form
    72,167.63/108,251.58 = 27,815.27/x
  3. Step 3: Cross multiply
    72,167.63x = 108,251.58 × 27,815.27
  4. Step 4: Simplify right side
    72,167.63x = 3,011,046,925.63
  5. Step 5: Solve for x
    x = 3,011,046,925.63/72,167.63
  6. Step 6: Final answer
    x = 41,722.96

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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.