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Finding the Fourth Proportional to 18,617.03, 25,717.65 and 16,935.47

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Solution

The fourth proportional to 18,617.03, 25,717.65 and 16,935.47 is: 23,394.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,617.03 : 25,717.65 = 16,935.47 : x
  2. Step 2: Convert to fraction form
    18,617.03/25,717.65 = 16,935.47/x
  3. Step 3: Cross multiply
    18,617.03x = 25,717.65 × 16,935.47
  4. Step 4: Simplify right side
    18,617.03x = 435,540,361.46
  5. Step 5: Solve for x
    x = 435,540,361.46/18,617.03
  6. Step 6: Final answer
    x = 23,394.73

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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.