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Finding the Fourth Proportional to 67,032.70, 100,562.55 and 19,647.70

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Solution

The fourth proportional to 67,032.70, 100,562.55 and 19,647.70 is: 29,475.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,032.70 : 100,562.55 = 19,647.70 : x
  2. Step 2: Convert to fraction form
    67,032.70/100,562.55 = 19,647.70/x
  3. Step 3: Cross multiply
    67,032.70x = 100,562.55 × 19,647.70
  4. Step 4: Simplify right side
    67,032.70x = 1,975,822,813.64
  5. Step 5: Solve for x
    x = 1,975,822,813.64/67,032.70
  6. Step 6: Final answer
    x = 29,475.51

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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.