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Finding the Fourth Proportional to 68,711.10, 94,824.05 and 38,496.68

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Solution

The fourth proportional to 68,711.10, 94,824.05 and 38,496.68 is: 53,126.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,711.10 : 94,824.05 = 38,496.68 : x
  2. Step 2: Convert to fraction form
    68,711.10/94,824.05 = 38,496.68/x
  3. Step 3: Cross multiply
    68,711.10x = 94,824.05 × 38,496.68
  4. Step 4: Simplify right side
    68,711.10x = 3,650,410,442.55
  5. Step 5: Solve for x
    x = 3,650,410,442.55/68,711.10
  6. Step 6: Final answer
    x = 53,126.94

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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.