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Finding the Fourth Proportional to 66,513.53, 99,788.52 and 33,193.37

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Solution

The fourth proportional to 66,513.53, 99,788.52 and 33,193.37 is: 49,799.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,513.53 : 99,788.52 = 33,193.37 : x
  2. Step 2: Convert to fraction form
    66,513.53/99,788.52 = 33,193.37/x
  3. Step 3: Cross multiply
    66,513.53x = 99,788.52 × 33,193.37
  4. Step 4: Simplify right side
    66,513.53x = 3,312,317,266.11
  5. Step 5: Solve for x
    x = 3,312,317,266.11/66,513.53
  6. Step 6: Final answer
    x = 49,799.15

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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.