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Finding the Fourth Proportional to 68,813.22, 94,963.04 and 38,186.95

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Solution

The fourth proportional to 68,813.22, 94,963.04 and 38,186.95 is: 52,698.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,813.22 : 94,963.04 = 38,186.95 : x
  2. Step 2: Convert to fraction form
    68,813.22/94,963.04 = 38,186.95/x
  3. Step 3: Cross multiply
    68,813.22x = 94,963.04 × 38,186.95
  4. Step 4: Simplify right side
    68,813.22x = 3,626,348,860.33
  5. Step 5: Solve for x
    x = 3,626,348,860.33/68,813.22
  6. Step 6: Final answer
    x = 52,698.43

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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.