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Finding the Fourth Proportional to 19,858.92, 29,800.94 and 11,099.58

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Solution

The fourth proportional to 19,858.92, 29,800.94 and 11,099.58 is: 16,656.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,858.92 : 29,800.94 = 11,099.58 : x
  2. Step 2: Convert to fraction form
    19,858.92/29,800.94 = 11,099.58/x
  3. Step 3: Cross multiply
    19,858.92x = 29,800.94 × 11,099.58
  4. Step 4: Simplify right side
    19,858.92x = 330,777,862.11
  5. Step 5: Solve for x
    x = 330,777,862.11/19,858.92
  6. Step 6: Final answer
    x = 16,656.39

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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.