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Finding the Fourth Proportional to 17,381.70, 26,072.55 and 16,215.30

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Solution

The fourth proportional to 17,381.70, 26,072.55 and 16,215.30 is: 24,322.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,381.70 : 26,072.55 = 16,215.30 : x
  2. Step 2: Convert to fraction form
    17,381.70/26,072.55 = 16,215.30/x
  3. Step 3: Cross multiply
    17,381.70x = 26,072.55 × 16,215.30
  4. Step 4: Simplify right side
    17,381.70x = 422,774,220.02
  5. Step 5: Solve for x
    x = 422,774,220.02/17,381.70
  6. Step 6: Final answer
    x = 24,322.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.