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Finding the Fourth Proportional to 21,833.79, 32,723.28 and 9,339.13

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Solution

The fourth proportional to 21,833.79, 32,723.28 and 9,339.13 is: 13,996.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,833.79 : 32,723.28 = 9,339.13 : x
  2. Step 2: Convert to fraction form
    21,833.79/32,723.28 = 9,339.13/x
  3. Step 3: Cross multiply
    21,833.79x = 32,723.28 × 9,339.13
  4. Step 4: Simplify right side
    21,833.79x = 305,606,965.95
  5. Step 5: Solve for x
    x = 305,606,965.95/21,833.79
  6. Step 6: Final answer
    x = 13,996.97

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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.