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Finding the Fourth Proportional to 64,699.25, 89,286.33 and 36,404.94

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Solution

The fourth proportional to 64,699.25, 89,286.33 and 36,404.94 is: 50,239.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,699.25 : 89,286.33 = 36,404.94 : x
  2. Step 2: Convert to fraction form
    64,699.25/89,286.33 = 36,404.94/x
  3. Step 3: Cross multiply
    64,699.25x = 89,286.33 × 36,404.94
  4. Step 4: Simplify right side
    64,699.25x = 3,250,463,486.47
  5. Step 5: Solve for x
    x = 3,250,463,486.47/64,699.25
  6. Step 6: Final answer
    x = 50,239.59

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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.