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Finding the Fourth Proportional to 67,006.74, 100,506.86 and 25,450.50

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Solution

The fourth proportional to 67,006.74, 100,506.86 and 25,450.50 is: 38,174.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,006.74 : 100,506.86 = 25,450.50 : x
  2. Step 2: Convert to fraction form
    67,006.74/100,506.86 = 25,450.50/x
  3. Step 3: Cross multiply
    67,006.74x = 100,506.86 × 25,450.50
  4. Step 4: Simplify right side
    67,006.74x = 2,557,949,840.43
  5. Step 5: Solve for x
    x = 2,557,949,840.43/67,006.74
  6. Step 6: Final answer
    x = 38,174.52

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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.