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Finding the Fourth Proportional to 10,661.58, 15,992.40 and 3,266.01

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Solution

The fourth proportional to 10,661.58, 15,992.40 and 3,266.01 is: 4,899.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,661.58 : 15,992.40 = 3,266.01 : x
  2. Step 2: Convert to fraction form
    10,661.58/15,992.40 = 3,266.01/x
  3. Step 3: Cross multiply
    10,661.58x = 15,992.40 × 3,266.01
  4. Step 4: Simplify right side
    10,661.58x = 52,231,338.32
  5. Step 5: Solve for x
    x = 52,231,338.32/10,661.58
  6. Step 6: Final answer
    x = 4,899.02

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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.