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Finding the Fourth Proportional to 60,368.94, 90,544.69 and 20,380.67

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Solution

The fourth proportional to 60,368.94, 90,544.69 and 20,380.67 is: 30,568.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,368.94 : 90,544.69 = 20,380.67 : x
  2. Step 2: Convert to fraction form
    60,368.94/90,544.69 = 20,380.67/x
  3. Step 3: Cross multiply
    60,368.94x = 90,544.69 × 20,380.67
  4. Step 4: Simplify right side
    60,368.94x = 1,845,361,359.44
  5. Step 5: Solve for x
    x = 1,845,361,359.44/60,368.94
  6. Step 6: Final answer
    x = 30,568.06

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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.