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Finding the Fourth Proportional to 18,376.47, 25,321.95 and 17,383.95

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Solution

The fourth proportional to 18,376.47, 25,321.95 and 17,383.95 is: 23,954.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,376.47 : 25,321.95 = 17,383.95 : x
  2. Step 2: Convert to fraction form
    18,376.47/25,321.95 = 17,383.95/x
  3. Step 3: Cross multiply
    18,376.47x = 25,321.95 × 17,383.95
  4. Step 4: Simplify right side
    18,376.47x = 440,195,512.70
  5. Step 5: Solve for x
    x = 440,195,512.70/18,376.47
  6. Step 6: Final answer
    x = 23,954.30

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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.