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Finding the Fourth Proportional to 9,057.56, 12,524.10 and 7,891.16

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Solution

The fourth proportional to 9,057.56, 12,524.10 and 7,891.16 is: 10,911.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,057.56 : 12,524.10 = 7,891.16 : x
  2. Step 2: Convert to fraction form
    9,057.56/12,524.10 = 7,891.16/x
  3. Step 3: Cross multiply
    9,057.56x = 12,524.10 × 7,891.16
  4. Step 4: Simplify right side
    9,057.56x = 98,829,676.96
  5. Step 5: Solve for x
    x = 98,829,676.96/9,057.56
  6. Step 6: Final answer
    x = 10,911.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.