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Finding the Fourth Proportional to 11,662.66, 17,488.04 and 4,265.20

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Solution

The fourth proportional to 11,662.66, 17,488.04 and 4,265.20 is: 6,395.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,662.66 : 17,488.04 = 4,265.20 : x
  2. Step 2: Convert to fraction form
    11,662.66/17,488.04 = 4,265.20/x
  3. Step 3: Cross multiply
    11,662.66x = 17,488.04 × 4,265.20
  4. Step 4: Simplify right side
    11,662.66x = 74,589,900.77
  5. Step 5: Solve for x
    x = 74,589,900.77/11,662.66
  6. Step 6: Final answer
    x = 6,395.62

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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.