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Finding the Fourth Proportional to 22,479.18, 33,719.73 and 6,897.42

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Solution

The fourth proportional to 22,479.18, 33,719.73 and 6,897.42 is: 10,346.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,479.18 : 33,719.73 = 6,897.42 : x
  2. Step 2: Convert to fraction form
    22,479.18/33,719.73 = 6,897.42/x
  3. Step 3: Cross multiply
    22,479.18x = 33,719.73 × 6,897.42
  4. Step 4: Simplify right side
    22,479.18x = 232,579,140.10
  5. Step 5: Solve for x
    x = 232,579,140.10/22,479.18
  6. Step 6: Final answer
    x = 10,346.42

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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.