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Finding the Fourth Proportional to 67,370.95, 101,056.42 and 20,617.75

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Solution

The fourth proportional to 67,370.95, 101,056.42 and 20,617.75 is: 30,926.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,370.95 : 101,056.42 = 20,617.75 : x
  2. Step 2: Convert to fraction form
    67,370.95/101,056.42 = 20,617.75/x
  3. Step 3: Cross multiply
    67,370.95x = 101,056.42 × 20,617.75
  4. Step 4: Simplify right side
    67,370.95x = 2,083,555,498.17
  5. Step 5: Solve for x
    x = 2,083,555,498.17/67,370.95
  6. Step 6: Final answer
    x = 30,926.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.