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Finding the Fourth Proportional to 8,554.28, 11,795.66 and 7,425.55

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Solution

The fourth proportional to 8,554.28, 11,795.66 and 7,425.55 is: 10,239.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,554.28 : 11,795.66 = 7,425.55 : x
  2. Step 2: Convert to fraction form
    8,554.28/11,795.66 = 7,425.55/x
  3. Step 3: Cross multiply
    8,554.28x = 11,795.66 × 7,425.55
  4. Step 4: Simplify right side
    8,554.28x = 87,589,196.50
  5. Step 5: Solve for x
    x = 87,589,196.50/8,554.28
  6. Step 6: Final answer
    x = 10,239.22

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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.