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Finding the Fourth Proportional to 18,602.70, 25,671.20 and 10,104.45

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Solution

The fourth proportional to 18,602.70, 25,671.20 and 10,104.45 is: 13,943.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,602.70 : 25,671.20 = 10,104.45 : x
  2. Step 2: Convert to fraction form
    18,602.70/25,671.20 = 10,104.45/x
  3. Step 3: Cross multiply
    18,602.70x = 25,671.20 × 10,104.45
  4. Step 4: Simplify right side
    18,602.70x = 259,393,306.32
  5. Step 5: Solve for x
    x = 259,393,306.32/18,602.70
  6. Step 6: Final answer
    x = 13,943.85

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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.