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Finding the Fourth Proportional to 69,737.40, 104,606.10 and 67,015.80

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Solution

The fourth proportional to 69,737.40, 104,606.10 and 67,015.80 is: 100,523.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,737.40 : 104,606.10 = 67,015.80 : x
  2. Step 2: Convert to fraction form
    69,737.40/104,606.10 = 67,015.80/x
  3. Step 3: Cross multiply
    69,737.40x = 104,606.10 × 67,015.80
  4. Step 4: Simplify right side
    69,737.40x = 7,010,261,476.38
  5. Step 5: Solve for x
    x = 7,010,261,476.38/69,737.40
  6. Step 6: Final answer
    x = 100,523.70

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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.