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Finding the Fourth Proportional to 67,578.60, 93,258 and 37,770.60

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Solution

The fourth proportional to 67,578.60, 93,258 and 37,770.60 is: 52,123.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,578.60 : 93,258 = 37,770.60 : x
  2. Step 2: Convert to fraction form
    67,578.60/93,258 = 37,770.60/x
  3. Step 3: Cross multiply
    67,578.60x = 93,258 × 37,770.60
  4. Step 4: Simplify right side
    67,578.60x = 3,522,410,614.80
  5. Step 5: Solve for x
    x = 3,522,410,614.80/67,578.60
  6. Step 6: Final answer
    x = 52,123.17

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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.