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Finding the Fourth Proportional to 18,474, 25,494.12 and 10,090.50

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Solution

The fourth proportional to 18,474, 25,494.12 and 10,090.50 is: 13,924.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,474 : 25,494.12 = 10,090.50 : x
  2. Step 2: Convert to fraction form
    18,474/25,494.12 = 10,090.50/x
  3. Step 3: Cross multiply
    18,474x = 25,494.12 × 10,090.50
  4. Step 4: Simplify right side
    18,474x = 257,248,417.86
  5. Step 5: Solve for x
    x = 257,248,417.86/18,474
  6. Step 6: Final answer
    x = 13,924.89

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.