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Finding the Fourth Proportional to 67,058.34, 100,503.63 and 33,786.78

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Solution

The fourth proportional to 67,058.34, 100,503.63 and 33,786.78 is: 50,637.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,058.34 : 100,503.63 = 33,786.78 : x
  2. Step 2: Convert to fraction form
    67,058.34/100,503.63 = 33,786.78/x
  3. Step 3: Cross multiply
    67,058.34x = 100,503.63 × 33,786.78
  4. Step 4: Simplify right side
    67,058.34x = 3,395,694,036.01
  5. Step 5: Solve for x
    x = 3,395,694,036.01/67,058.34
  6. Step 6: Final answer
    x = 50,637.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.