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Finding the Fourth Proportional to 69,320.64, 103,980.80 and 22,573.44

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Solution

The fourth proportional to 69,320.64, 103,980.80 and 22,573.44 is: 33,860.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,320.64 : 103,980.80 = 22,573.44 : x
  2. Step 2: Convert to fraction form
    69,320.64/103,980.80 = 22,573.44/x
  3. Step 3: Cross multiply
    69,320.64x = 103,980.80 × 22,573.44
  4. Step 4: Simplify right side
    69,320.64x = 2,347,204,349.95
  5. Step 5: Solve for x
    x = 2,347,204,349.95/69,320.64
  6. Step 6: Final answer
    x = 33,860.11

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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.