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Finding the Fourth Proportional to 27,738.60, 41,607.90 and 11,101.20

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Solution

The fourth proportional to 27,738.60, 41,607.90 and 11,101.20 is: 16,651.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,738.60 : 41,607.90 = 11,101.20 : x
  2. Step 2: Convert to fraction form
    27,738.60/41,607.90 = 11,101.20/x
  3. Step 3: Cross multiply
    27,738.60x = 41,607.90 × 11,101.20
  4. Step 4: Simplify right side
    27,738.60x = 461,897,619.48
  5. Step 5: Solve for x
    x = 461,897,619.48/27,738.60
  6. Step 6: Final answer
    x = 16,651.80

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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.