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Finding the Fourth Proportional to 22,173, 33,259.50 and 21,615.36

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Solution

The fourth proportional to 22,173, 33,259.50 and 21,615.36 is: 32,423.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,173 : 33,259.50 = 21,615.36 : x
  2. Step 2: Convert to fraction form
    22,173/33,259.50 = 21,615.36/x
  3. Step 3: Cross multiply
    22,173x = 33,259.50 × 21,615.36
  4. Step 4: Simplify right side
    22,173x = 718,916,065.92
  5. Step 5: Solve for x
    x = 718,916,065.92/22,173
  6. Step 6: Final answer
    x = 32,423.04

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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.