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Finding the Fourth Proportional to 19,710.18, 29,555.04 and 7,227

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Solution

The fourth proportional to 19,710.18, 29,555.04 and 7,227 is: 10,836.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,710.18 : 29,555.04 = 7,227 : x
  2. Step 2: Convert to fraction form
    19,710.18/29,555.04 = 7,227/x
  3. Step 3: Cross multiply
    19,710.18x = 29,555.04 × 7,227
  4. Step 4: Simplify right side
    19,710.18x = 213,594,274.08
  5. Step 5: Solve for x
    x = 213,594,274.08/19,710.18
  6. Step 6: Final answer
    x = 10,836.75

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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.