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Finding the Fourth Proportional to 69,371.70, 95,737.94 and 39,159.60

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Solution

The fourth proportional to 69,371.70, 95,737.94 and 39,159.60 is: 54,043.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,371.70 : 95,737.94 = 39,159.60 : x
  2. Step 2: Convert to fraction form
    69,371.70/95,737.94 = 39,159.60/x
  3. Step 3: Cross multiply
    69,371.70x = 95,737.94 × 39,159.60
  4. Step 4: Simplify right side
    69,371.70x = 3,749,059,435.22
  5. Step 5: Solve for x
    x = 3,749,059,435.22/69,371.70
  6. Step 6: Final answer
    x = 54,043.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.