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Finding the Fourth Proportional to 18,967.17, 26,187.03 and 16,974.30

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Solution

The fourth proportional to 18,967.17, 26,187.03 and 16,974.30 is: 23,435.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,967.17 : 26,187.03 = 16,974.30 : x
  2. Step 2: Convert to fraction form
    18,967.17/26,187.03 = 16,974.30/x
  3. Step 3: Cross multiply
    18,967.17x = 26,187.03 × 16,974.30
  4. Step 4: Simplify right side
    18,967.17x = 444,506,503.33
  5. Step 5: Solve for x
    x = 444,506,503.33/18,967.17
  6. Step 6: Final answer
    x = 23,435.57

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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.