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Finding the Fourth Proportional to 7,334.80, 10,992.92 and 4,253.20

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Solution

The fourth proportional to 7,334.80, 10,992.92 and 4,253.20 is: 6,374.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,334.80 : 10,992.92 = 4,253.20 : x
  2. Step 2: Convert to fraction form
    7,334.80/10,992.92 = 4,253.20/x
  3. Step 3: Cross multiply
    7,334.80x = 10,992.92 × 4,253.20
  4. Step 4: Simplify right side
    7,334.80x = 46,755,087.34
  5. Step 5: Solve for x
    x = 46,755,087.34/7,334.80
  6. Step 6: Final answer
    x = 6,374.42

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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.