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Finding the Fourth Proportional to 17,718.56, 26,581.11 and 7,331.12

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Solution

The fourth proportional to 17,718.56, 26,581.11 and 7,331.12 is: 10,998.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,718.56 : 26,581.11 = 7,331.12 : x
  2. Step 2: Convert to fraction form
    17,718.56/26,581.11 = 7,331.12/x
  3. Step 3: Cross multiply
    17,718.56x = 26,581.11 × 7,331.12
  4. Step 4: Simplify right side
    17,718.56x = 194,869,307.14
  5. Step 5: Solve for x
    x = 194,869,307.14/17,718.56
  6. Step 6: Final answer
    x = 10,998.03

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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.