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Finding the Fourth Proportional to 68,493.18, 94,520.28 and 38,278.48

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Solution

The fourth proportional to 68,493.18, 94,520.28 and 38,278.48 is: 52,824.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,493.18 : 94,520.28 = 38,278.48 : x
  2. Step 2: Convert to fraction form
    68,493.18/94,520.28 = 38,278.48/x
  3. Step 3: Cross multiply
    68,493.18x = 94,520.28 × 38,278.48
  4. Step 4: Simplify right side
    68,493.18x = 3,618,092,647.57
  5. Step 5: Solve for x
    x = 3,618,092,647.57/68,493.18
  6. Step 6: Final answer
    x = 52,824.13

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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.