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Finding the Fourth Proportional to 73,341, 101,212.74 and 39,809.16

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Solution

The fourth proportional to 73,341, 101,212.74 and 39,809.16 is: 54,937.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,341 : 101,212.74 = 39,809.16 : x
  2. Step 2: Convert to fraction form
    73,341/101,212.74 = 39,809.16/x
  3. Step 3: Cross multiply
    73,341x = 101,212.74 × 39,809.16
  4. Step 4: Simplify right side
    73,341x = 4,029,194,160.70
  5. Step 5: Solve for x
    x = 4,029,194,160.70/73,341
  6. Step 6: Final answer
    x = 54,937.81

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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.