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Finding the Fourth Proportional to 18,607.50, 25,603.02 and 17,961.12

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Solution

The fourth proportional to 18,607.50, 25,603.02 and 17,961.12 is: 24,713.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,607.50 : 25,603.02 = 17,961.12 : x
  2. Step 2: Convert to fraction form
    18,607.50/25,603.02 = 17,961.12/x
  3. Step 3: Cross multiply
    18,607.50x = 25,603.02 × 17,961.12
  4. Step 4: Simplify right side
    18,607.50x = 459,858,914.58
  5. Step 5: Solve for x
    x = 459,858,914.58/18,607.50
  6. Step 6: Final answer
    x = 24,713.63

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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.