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Finding the Fourth Proportional to 69,249.42, 103,874.31 and 39,646.89

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Solution

The fourth proportional to 69,249.42, 103,874.31 and 39,646.89 is: 59,470.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,249.42 : 103,874.31 = 39,646.89 : x
  2. Step 2: Convert to fraction form
    69,249.42/103,874.31 = 39,646.89/x
  3. Step 3: Cross multiply
    69,249.42x = 103,874.31 × 39,646.89
  4. Step 4: Simplify right side
    69,249.42x = 4,118,293,342.40
  5. Step 5: Solve for x
    x = 4,118,293,342.40/69,249.42
  6. Step 6: Final answer
    x = 59,470.44

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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.