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Finding the Fourth Proportional to 21,928.56, 32,896.08 and 6,346.32

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Solution

The fourth proportional to 21,928.56, 32,896.08 and 6,346.32 is: 9,520.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,928.56 : 32,896.08 = 6,346.32 : x
  2. Step 2: Convert to fraction form
    21,928.56/32,896.08 = 6,346.32/x
  3. Step 3: Cross multiply
    21,928.56x = 32,896.08 × 6,346.32
  4. Step 4: Simplify right side
    21,928.56x = 208,769,050.43
  5. Step 5: Solve for x
    x = 208,769,050.43/21,928.56
  6. Step 6: Final answer
    x = 9,520.42

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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.