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Finding the Fourth Proportional to 21,566.61, 29,758.03 and 12,367.44

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Solution

The fourth proportional to 21,566.61, 29,758.03 and 12,367.44 is: 17,064.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,566.61 : 29,758.03 = 12,367.44 : x
  2. Step 2: Convert to fraction form
    21,566.61/29,758.03 = 12,367.44/x
  3. Step 3: Cross multiply
    21,566.61x = 29,758.03 × 12,367.44
  4. Step 4: Simplify right side
    21,566.61x = 368,030,650.54
  5. Step 5: Solve for x
    x = 368,030,650.54/21,566.61
  6. Step 6: Final answer
    x = 17,064.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.