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Finding the Fourth Proportional to 83,980.08, 125,944.14 and 27,808.56

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Solution

The fourth proportional to 83,980.08, 125,944.14 and 27,808.56 is: 41,704.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,980.08 : 125,944.14 = 27,808.56 : x
  2. Step 2: Convert to fraction form
    83,980.08/125,944.14 = 27,808.56/x
  3. Step 3: Cross multiply
    83,980.08x = 125,944.14 × 27,808.56
  4. Step 4: Simplify right side
    83,980.08x = 3,502,325,173.84
  5. Step 5: Solve for x
    x = 3,502,325,173.84/83,980.08
  6. Step 6: Final answer
    x = 41,704.24

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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.