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Finding the Fourth Proportional to 83,412.77, 125,122.90 and 27,256.31

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Solution

The fourth proportional to 83,412.77, 125,122.90 and 27,256.31 is: 40,885.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,412.77 : 125,122.90 = 27,256.31 : x
  2. Step 2: Convert to fraction form
    83,412.77/125,122.90 = 27,256.31/x
  3. Step 3: Cross multiply
    83,412.77x = 125,122.90 × 27,256.31
  4. Step 4: Simplify right side
    83,412.77x = 3,410,388,550.50
  5. Step 5: Solve for x
    x = 3,410,388,550.50/83,412.77
  6. Step 6: Final answer
    x = 40,885.69

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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.