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Finding the Fourth Proportional to 68,711.76, 94,816.62 and 38,494.62

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Solution

The fourth proportional to 68,711.76, 94,816.62 and 38,494.62 is: 53,119.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,711.76 : 94,816.62 = 38,494.62 : x
  2. Step 2: Convert to fraction form
    68,711.76/94,816.62 = 38,494.62/x
  3. Step 3: Cross multiply
    68,711.76x = 94,816.62 × 38,494.62
  4. Step 4: Simplify right side
    68,711.76x = 3,649,929,756.58
  5. Step 5: Solve for x
    x = 3,649,929,756.58/68,711.76
  6. Step 6: Final answer
    x = 53,119.43

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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.