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Finding the Fourth Proportional to 10,690.70, 16,036.04 and 7,016.15

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Solution

The fourth proportional to 10,690.70, 16,036.04 and 7,016.15 is: 10,524.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,690.70 : 16,036.04 = 7,016.15 : x
  2. Step 2: Convert to fraction form
    10,690.70/16,036.04 = 7,016.15/x
  3. Step 3: Cross multiply
    10,690.70x = 16,036.04 × 7,016.15
  4. Step 4: Simplify right side
    10,690.70x = 112,511,319.68
  5. Step 5: Solve for x
    x = 112,511,319.68/10,690.70
  6. Step 6: Final answer
    x = 10,524.23

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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.