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Finding the Fourth Proportional to 21,797.92, 32,698.04 and 7,005.70

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Solution

The fourth proportional to 21,797.92, 32,698.04 and 7,005.70 is: 10,508.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,797.92 : 32,698.04 = 7,005.70 : x
  2. Step 2: Convert to fraction form
    21,797.92/32,698.04 = 7,005.70/x
  3. Step 3: Cross multiply
    21,797.92x = 32,698.04 × 7,005.70
  4. Step 4: Simplify right side
    21,797.92x = 229,072,658.83
  5. Step 5: Solve for x
    x = 229,072,658.83/21,797.92
  6. Step 6: Final answer
    x = 10,508.92

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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.