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Finding the Fourth Proportional to 22,139.79, 33,162.84 and 17,904.87

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Solution

The fourth proportional to 22,139.79, 33,162.84 and 17,904.87 is: 26,819.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,139.79 : 33,162.84 = 17,904.87 : x
  2. Step 2: Convert to fraction form
    22,139.79/33,162.84 = 17,904.87/x
  3. Step 3: Cross multiply
    22,139.79x = 33,162.84 × 17,904.87
  4. Step 4: Simplify right side
    22,139.79x = 593,776,339.03
  5. Step 5: Solve for x
    x = 593,776,339.03/22,139.79
  6. Step 6: Final answer
    x = 26,819.42

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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.