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Finding the Fourth Proportional to 8,965.70, 13,433.16 and 5,016.11

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Solution

The fourth proportional to 8,965.70, 13,433.16 and 5,016.11 is: 7,515.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,965.70 : 13,433.16 = 5,016.11 : x
  2. Step 2: Convert to fraction form
    8,965.70/13,433.16 = 5,016.11/x
  3. Step 3: Cross multiply
    8,965.70x = 13,433.16 × 5,016.11
  4. Step 4: Simplify right side
    8,965.70x = 67,382,141.04
  5. Step 5: Solve for x
    x = 67,382,141.04/8,965.70
  6. Step 6: Final answer
    x = 7,515.55

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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.