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Finding the Fourth Proportional to 22,139.61, 33,199.65 and 6,341.06

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Solution

The fourth proportional to 22,139.61, 33,199.65 and 6,341.06 is: 9,508.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,139.61 : 33,199.65 = 6,341.06 : x
  2. Step 2: Convert to fraction form
    22,139.61/33,199.65 = 6,341.06/x
  3. Step 3: Cross multiply
    22,139.61x = 33,199.65 × 6,341.06
  4. Step 4: Simplify right side
    22,139.61x = 210,520,806.63
  5. Step 5: Solve for x
    x = 210,520,806.63/22,139.61
  6. Step 6: Final answer
    x = 9,508.79

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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.