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Finding the Fourth Proportional to 68,713.84, 94,805.76 and 41,857.12

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Solution

The fourth proportional to 68,713.84, 94,805.76 and 41,857.12 is: 57,751.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,713.84 : 94,805.76 = 41,857.12 : x
  2. Step 2: Convert to fraction form
    68,713.84/94,805.76 = 41,857.12/x
  3. Step 3: Cross multiply
    68,713.84x = 94,805.76 × 41,857.12
  4. Step 4: Simplify right side
    68,713.84x = 3,968,296,073.01
  5. Step 5: Solve for x
    x = 3,968,296,073.01/68,713.84
  6. Step 6: Final answer
    x = 57,751.05

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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.