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Finding the Fourth Proportional to 61,329.52, 91,994.28 and 19,209.96

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Solution

The fourth proportional to 61,329.52, 91,994.28 and 19,209.96 is: 28,814.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,329.52 : 91,994.28 = 19,209.96 : x
  2. Step 2: Convert to fraction form
    61,329.52/91,994.28 = 19,209.96/x
  3. Step 3: Cross multiply
    61,329.52x = 91,994.28 × 19,209.96
  4. Step 4: Simplify right side
    61,329.52x = 1,767,206,475.05
  5. Step 5: Solve for x
    x = 1,767,206,475.05/61,329.52
  6. Step 6: Final answer
    x = 28,814.94

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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.