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Finding the Fourth Proportional to 73,073.25, 100,841.09 and 39,539.25

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Solution

The fourth proportional to 73,073.25, 100,841.09 and 39,539.25 is: 54,564.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,073.25 : 100,841.09 = 39,539.25 : x
  2. Step 2: Convert to fraction form
    73,073.25/100,841.09 = 39,539.25/x
  3. Step 3: Cross multiply
    73,073.25x = 100,841.09 × 39,539.25
  4. Step 4: Simplify right side
    73,073.25x = 3,987,180,870.09
  5. Step 5: Solve for x
    x = 3,987,180,870.09/73,073.25
  6. Step 6: Final answer
    x = 54,564.17

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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.