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Finding the Fourth Proportional to 21,344.96, 32,022.48 and 7,305.12

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Solution

The fourth proportional to 21,344.96, 32,022.48 and 7,305.12 is: 10,959.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,344.96 : 32,022.48 = 7,305.12 : x
  2. Step 2: Convert to fraction form
    21,344.96/32,022.48 = 7,305.12/x
  3. Step 3: Cross multiply
    21,344.96x = 32,022.48 × 7,305.12
  4. Step 4: Simplify right side
    21,344.96x = 233,928,059.10
  5. Step 5: Solve for x
    x = 233,928,059.10/21,344.96
  6. Step 6: Final answer
    x = 10,959.40

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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.