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Finding the Fourth Proportional to 67,391.30, 101,068.72 and 20,006.30

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Solution

The fourth proportional to 67,391.30, 101,068.72 and 20,006.30 is: 30,004.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,391.30 : 101,068.72 = 20,006.30 : x
  2. Step 2: Convert to fraction form
    67,391.30/101,068.72 = 20,006.30/x
  3. Step 3: Cross multiply
    67,391.30x = 101,068.72 × 20,006.30
  4. Step 4: Simplify right side
    67,391.30x = 2,022,011,132.94
  5. Step 5: Solve for x
    x = 2,022,011,132.94/67,391.30
  6. Step 6: Final answer
    x = 30,004.04

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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.