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Finding the Fourth Proportional to 18,607.91, 25,679.21 and 10,110.02

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Solution

The fourth proportional to 18,607.91, 25,679.21 and 10,110.02 is: 13,951.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,607.91 : 25,679.21 = 10,110.02 : x
  2. Step 2: Convert to fraction form
    18,607.91/25,679.21 = 10,110.02/x
  3. Step 3: Cross multiply
    18,607.91x = 25,679.21 × 10,110.02
  4. Step 4: Simplify right side
    18,607.91x = 259,617,147.74
  5. Step 5: Solve for x
    x = 259,617,147.74/18,607.91
  6. Step 6: Final answer
    x = 13,951.98

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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.