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Finding the Fourth Proportional to 18,627.42, 27,914.40 and 14,447.82

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Solution

The fourth proportional to 18,627.42, 27,914.40 and 14,447.82 is: 21,651.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,627.42 : 27,914.40 = 14,447.82 : x
  2. Step 2: Convert to fraction form
    18,627.42/27,914.40 = 14,447.82/x
  3. Step 3: Cross multiply
    18,627.42x = 27,914.40 × 14,447.82
  4. Step 4: Simplify right side
    18,627.42x = 403,302,226.61
  5. Step 5: Solve for x
    x = 403,302,226.61/18,627.42
  6. Step 6: Final answer
    x = 21,651.00

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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.