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Finding the Fourth Proportional to 73,464.86, 101,381.49 and 39,930.86

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Solution

The fourth proportional to 73,464.86, 101,381.49 and 39,930.86 is: 55,104.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,464.86 : 101,381.49 = 39,930.86 : x
  2. Step 2: Convert to fraction form
    73,464.86/101,381.49 = 39,930.86/x
  3. Step 3: Cross multiply
    73,464.86x = 101,381.49 × 39,930.86
  4. Step 4: Simplify right side
    73,464.86x = 4,048,249,576.87
  5. Step 5: Solve for x
    x = 4,048,249,576.87/73,464.86
  6. Step 6: Final answer
    x = 55,104.57

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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.