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Finding the Fourth Proportional to 6,473.28, 8,932.08 and 3,820.32

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Solution

The fourth proportional to 6,473.28, 8,932.08 and 3,820.32 is: 5,271.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,473.28 : 8,932.08 = 3,820.32 : x
  2. Step 2: Convert to fraction form
    6,473.28/8,932.08 = 3,820.32/x
  3. Step 3: Cross multiply
    6,473.28x = 8,932.08 × 3,820.32
  4. Step 4: Simplify right side
    6,473.28x = 34,123,403.87
  5. Step 5: Solve for x
    x = 34,123,403.87/6,473.28
  6. Step 6: Final answer
    x = 5,271.42

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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.