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Finding the Fourth Proportional to 18,174.90, 25,081.62 and 10,216.68

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Solution

The fourth proportional to 18,174.90, 25,081.62 and 10,216.68 is: 14,099.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,174.90 : 25,081.62 = 10,216.68 : x
  2. Step 2: Convert to fraction form
    18,174.90/25,081.62 = 10,216.68/x
  3. Step 3: Cross multiply
    18,174.90x = 25,081.62 × 10,216.68
  4. Step 4: Simplify right side
    18,174.90x = 256,250,885.42
  5. Step 5: Solve for x
    x = 256,250,885.42/18,174.90
  6. Step 6: Final answer
    x = 14,099.16

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1.5x scale

Why These Related Problems?

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