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Finding the Fourth Proportional to 19,366.76, 29,043.78 and 6,216

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Solution

The fourth proportional to 19,366.76, 29,043.78 and 6,216 is: 9,321.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,366.76 : 29,043.78 = 6,216 : x
  2. Step 2: Convert to fraction form
    19,366.76/29,043.78 = 6,216/x
  3. Step 3: Cross multiply
    19,366.76x = 29,043.78 × 6,216
  4. Step 4: Simplify right side
    19,366.76x = 180,536,136.48
  5. Step 5: Solve for x
    x = 180,536,136.48/19,366.76
  6. Step 6: Final answer
    x = 9,321.96

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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.