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Finding the Fourth Proportional to 21,928.52, 32,892.76 and 6,346.12

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Solution

The fourth proportional to 21,928.52, 32,892.76 and 6,346.12 is: 9,519.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,928.52 : 32,892.76 = 6,346.12 : x
  2. Step 2: Convert to fraction form
    21,928.52/32,892.76 = 6,346.12/x
  3. Step 3: Cross multiply
    21,928.52x = 32,892.76 × 6,346.12
  4. Step 4: Simplify right side
    21,928.52x = 208,741,402.09
  5. Step 5: Solve for x
    x = 208,741,402.09/21,928.52
  6. Step 6: Final answer
    x = 9,519.17

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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.