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Finding the Fourth Proportional to 7,076.12, 9,765.02 and 3,932.24

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Solution

The fourth proportional to 7,076.12, 9,765.02 and 3,932.24 is: 5,426.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,076.12 : 9,765.02 = 3,932.24 : x
  2. Step 2: Convert to fraction form
    7,076.12/9,765.02 = 3,932.24/x
  3. Step 3: Cross multiply
    7,076.12x = 9,765.02 × 3,932.24
  4. Step 4: Simplify right side
    7,076.12x = 38,398,402.24
  5. Step 5: Solve for x
    x = 38,398,402.24/7,076.12
  6. Step 6: Final answer
    x = 5,426.48

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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.