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Finding the Fourth Proportional to 69,256.70, 103,884.57 and 19,336.80

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Solution

The fourth proportional to 69,256.70, 103,884.57 and 19,336.80 is: 29,005.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,256.70 : 103,884.57 = 19,336.80 : x
  2. Step 2: Convert to fraction form
    69,256.70/103,884.57 = 19,336.80/x
  3. Step 3: Cross multiply
    69,256.70x = 103,884.57 × 19,336.80
  4. Step 4: Simplify right side
    69,256.70x = 2,008,795,153.18
  5. Step 5: Solve for x
    x = 2,008,795,153.18/69,256.70
  6. Step 6: Final answer
    x = 29,005.07

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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.