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Finding the Fourth Proportional to 19,970.92, 29,959.26 and 6,121

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Solution

The fourth proportional to 19,970.92, 29,959.26 and 6,121 is: 9,182.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,970.92 : 29,959.26 = 6,121 : x
  2. Step 2: Convert to fraction form
    19,970.92/29,959.26 = 6,121/x
  3. Step 3: Cross multiply
    19,970.92x = 29,959.26 × 6,121
  4. Step 4: Simplify right side
    19,970.92x = 183,380,630.46
  5. Step 5: Solve for x
    x = 183,380,630.46/19,970.92
  6. Step 6: Final answer
    x = 9,182.38

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.