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Finding the Fourth Proportional to 69,503.31, 95,916.05 and 39,286.83

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Solution

The fourth proportional to 69,503.31, 95,916.05 and 39,286.83 is: 54,216.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,503.31 : 95,916.05 = 39,286.83 : x
  2. Step 2: Convert to fraction form
    69,503.31/95,916.05 = 39,286.83/x
  3. Step 3: Cross multiply
    69,503.31x = 95,916.05 × 39,286.83
  4. Step 4: Simplify right side
    69,503.31x = 3,768,237,550.62
  5. Step 5: Solve for x
    x = 3,768,237,550.62/69,503.31
  6. Step 6: Final answer
    x = 54,216.66

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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.