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Finding the Fourth Proportional to 12,553.97, 18,808.01 and 5,878.22

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Solution

The fourth proportional to 12,553.97, 18,808.01 and 5,878.22 is: 8,806.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,553.97 : 18,808.01 = 5,878.22 : x
  2. Step 2: Convert to fraction form
    12,553.97/18,808.01 = 5,878.22/x
  3. Step 3: Cross multiply
    12,553.97x = 18,808.01 × 5,878.22
  4. Step 4: Simplify right side
    12,553.97x = 110,557,591.15
  5. Step 5: Solve for x
    x = 110,557,591.15/12,553.97
  6. Step 6: Final answer
    x = 8,806.58

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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.