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Finding the Fourth Proportional to 67,569.75, 101,354.67 and 18,321.75

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Solution

The fourth proportional to 67,569.75, 101,354.67 and 18,321.75 is: 27,482.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,569.75 : 101,354.67 = 18,321.75 : x
  2. Step 2: Convert to fraction form
    67,569.75/101,354.67 = 18,321.75/x
  3. Step 3: Cross multiply
    67,569.75x = 101,354.67 × 18,321.75
  4. Step 4: Simplify right side
    67,569.75x = 1,856,994,925.07
  5. Step 5: Solve for x
    x = 1,856,994,925.07/67,569.75
  6. Step 6: Final answer
    x = 27,482.64

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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.