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Finding the Fourth Proportional to 22,643.55, 33,965.33 and 21,167.33

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Solution

The fourth proportional to 22,643.55, 33,965.33 and 21,167.33 is: 31,750.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,643.55 : 33,965.33 = 21,167.33 : x
  2. Step 2: Convert to fraction form
    22,643.55/33,965.33 = 21,167.33/x
  3. Step 3: Cross multiply
    22,643.55x = 33,965.33 × 21,167.33
  4. Step 4: Simplify right side
    22,643.55x = 718,955,073.01
  5. Step 5: Solve for x
    x = 718,955,073.01/22,643.55
  6. Step 6: Final answer
    x = 31,750.99

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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.