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Finding the Fourth Proportional to 19,551.51, 29,329.20 and 5,511.51

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Solution

The fourth proportional to 19,551.51, 29,329.20 and 5,511.51 is: 8,267.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,551.51 : 29,329.20 = 5,511.51 : x
  2. Step 2: Convert to fraction form
    19,551.51/29,329.20 = 5,511.51/x
  3. Step 3: Cross multiply
    19,551.51x = 29,329.20 × 5,511.51
  4. Step 4: Simplify right side
    19,551.51x = 161,648,179.09
  5. Step 5: Solve for x
    x = 161,648,179.09/19,551.51
  6. Step 6: Final answer
    x = 8,267.81

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1.5x scale

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.