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Finding the Fourth Proportional to 67,770.95, 93,471.17 and 40,885.43

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Solution

The fourth proportional to 67,770.95, 93,471.17 and 40,885.43 is: 56,390.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,770.95 : 93,471.17 = 40,885.43 : x
  2. Step 2: Convert to fraction form
    67,770.95/93,471.17 = 40,885.43/x
  3. Step 3: Cross multiply
    67,770.95x = 93,471.17 × 40,885.43
  4. Step 4: Simplify right side
    67,770.95x = 3,821,608,306.27
  5. Step 5: Solve for x
    x = 3,821,608,306.27/67,770.95
  6. Step 6: Final answer
    x = 56,390.07

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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.