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Finding the Fourth Proportional to 18,403.31, 27,604.89 and 4,552.31

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Solution

The fourth proportional to 18,403.31, 27,604.89 and 4,552.31 is: 6,828.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,403.31 : 27,604.89 = 4,552.31 : x
  2. Step 2: Convert to fraction form
    18,403.31/27,604.89 = 4,552.31/x
  3. Step 3: Cross multiply
    18,403.31x = 27,604.89 × 4,552.31
  4. Step 4: Simplify right side
    18,403.31x = 125,665,878.77
  5. Step 5: Solve for x
    x = 125,665,878.77/18,403.31
  6. Step 6: Final answer
    x = 6,828.44

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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.