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Finding the Fourth Proportional to 39,402.58, 54,358.41 and 25,956.58

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Solution

The fourth proportional to 39,402.58, 54,358.41 and 25,956.58 is: 35,808.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,402.58 : 54,358.41 = 25,956.58 : x
  2. Step 2: Convert to fraction form
    39,402.58/54,358.41 = 25,956.58/x
  3. Step 3: Cross multiply
    39,402.58x = 54,358.41 × 25,956.58
  4. Step 4: Simplify right side
    39,402.58x = 1,410,958,417.84
  5. Step 5: Solve for x
    x = 1,410,958,417.84/39,402.58
  6. Step 6: Final answer
    x = 35,808.78

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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.