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Finding the Fourth Proportional to 19,602.84, 27,057.80 and 15,622.52

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Solution

The fourth proportional to 19,602.84, 27,057.80 and 15,622.52 is: 21,563.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,602.84 : 27,057.80 = 15,622.52 : x
  2. Step 2: Convert to fraction form
    19,602.84/27,057.80 = 15,622.52/x
  3. Step 3: Cross multiply
    19,602.84x = 27,057.80 × 15,622.52
  4. Step 4: Simplify right side
    19,602.84x = 422,711,021.66
  5. Step 5: Solve for x
    x = 422,711,021.66/19,602.84
  6. Step 6: Final answer
    x = 21,563.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.