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Finding the Fourth Proportional to 7,431.93, 11,136.96 and 7,016.40

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Solution

The fourth proportional to 7,431.93, 11,136.96 and 7,016.40 is: 10,514.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,431.93 : 11,136.96 = 7,016.40 : x
  2. Step 2: Convert to fraction form
    7,431.93/11,136.96 = 7,016.40/x
  3. Step 3: Cross multiply
    7,431.93x = 11,136.96 × 7,016.40
  4. Step 4: Simplify right side
    7,431.93x = 78,141,366.14
  5. Step 5: Solve for x
    x = 78,141,366.14/7,431.93
  6. Step 6: Final answer
    x = 10,514.28

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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.