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Finding the Fourth Proportional to 43,458.95, 65,188.42 and 27,974.99

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Solution

The fourth proportional to 43,458.95, 65,188.42 and 27,974.99 is: 41,962.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,458.95 : 65,188.42 = 27,974.99 : x
  2. Step 2: Convert to fraction form
    43,458.95/65,188.42 = 27,974.99/x
  3. Step 3: Cross multiply
    43,458.95x = 65,188.42 × 27,974.99
  4. Step 4: Simplify right side
    43,458.95x = 1,823,645,001.74
  5. Step 5: Solve for x
    x = 1,823,645,001.74/43,458.95
  6. Step 6: Final answer
    x = 41,962.48

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Similar ratio
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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.