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Finding the Fourth Proportional to 27,773.74, 41,670.87 and 12,987.46

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Solution

The fourth proportional to 27,773.74, 41,670.87 and 12,987.46 is: 19,485.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,773.74 : 41,670.87 = 12,987.46 : x
  2. Step 2: Convert to fraction form
    27,773.74/41,670.87 = 12,987.46/x
  3. Step 3: Cross multiply
    27,773.74x = 41,670.87 × 12,987.46
  4. Step 4: Simplify right side
    27,773.74x = 541,198,757.29
  5. Step 5: Solve for x
    x = 541,198,757.29/27,773.74
  6. Step 6: Final answer
    x = 19,485.99

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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.