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Finding the Fourth Proportional to 9,352.88, 12,906.24 and 5,575.76

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Solution

The fourth proportional to 9,352.88, 12,906.24 and 5,575.76 is: 7,694.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,352.88 : 12,906.24 = 5,575.76 : x
  2. Step 2: Convert to fraction form
    9,352.88/12,906.24 = 5,575.76/x
  3. Step 3: Cross multiply
    9,352.88x = 12,906.24 × 5,575.76
  4. Step 4: Simplify right side
    9,352.88x = 71,962,096.74
  5. Step 5: Solve for x
    x = 71,962,096.74/9,352.88
  6. Step 6: Final answer
    x = 7,694.11

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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.