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Finding the Fourth Proportional to 39,665.92, 54,748.92 and 26,940.64

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Solution

The fourth proportional to 39,665.92, 54,748.92 and 26,940.64 is: 37,184.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,665.92 : 54,748.92 = 26,940.64 : x
  2. Step 2: Convert to fraction form
    39,665.92/54,748.92 = 26,940.64/x
  3. Step 3: Cross multiply
    39,665.92x = 54,748.92 × 26,940.64
  4. Step 4: Simplify right side
    39,665.92x = 1,474,970,944.11
  5. Step 5: Solve for x
    x = 1,474,970,944.11/39,665.92
  6. Step 6: Final answer
    x = 37,184.84

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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.