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Finding the Fourth Proportional to 68,238.58, 94,169.43 and 39,563.80

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Solution

The fourth proportional to 68,238.58, 94,169.43 and 39,563.80 is: 54,598.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,238.58 : 94,169.43 = 39,563.80 : x
  2. Step 2: Convert to fraction form
    68,238.58/94,169.43 = 39,563.80/x
  3. Step 3: Cross multiply
    68,238.58x = 94,169.43 × 39,563.80
  4. Step 4: Simplify right side
    68,238.58x = 3,725,700,494.63
  5. Step 5: Solve for x
    x = 3,725,700,494.63/68,238.58
  6. Step 6: Final answer
    x = 54,598.15

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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.