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Finding the Fourth Proportional to 67,059.32, 100,593.84 and 20,315.84

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Solution

The fourth proportional to 67,059.32, 100,593.84 and 20,315.84 is: 30,475.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,059.32 : 100,593.84 = 20,315.84 : x
  2. Step 2: Convert to fraction form
    67,059.32/100,593.84 = 20,315.84/x
  3. Step 3: Cross multiply
    67,059.32x = 100,593.84 × 20,315.84
  4. Step 4: Simplify right side
    67,059.32x = 2,043,648,358.43
  5. Step 5: Solve for x
    x = 2,043,648,358.43/67,059.32
  6. Step 6: Final answer
    x = 30,475.23

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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.