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Finding the Fourth Proportional to 73,064.25, 100,828.67 and 39,530.25

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Solution

The fourth proportional to 73,064.25, 100,828.67 and 39,530.25 is: 54,551.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,064.25 : 100,828.67 = 39,530.25 : x
  2. Step 2: Convert to fraction form
    73,064.25/100,828.67 = 39,530.25/x
  3. Step 3: Cross multiply
    73,064.25x = 100,828.67 × 39,530.25
  4. Step 4: Simplify right side
    73,064.25x = 3,985,782,334.62
  5. Step 5: Solve for x
    x = 3,985,782,334.62/73,064.25
  6. Step 6: Final answer
    x = 54,551.75

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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.