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Finding the Fourth Proportional to 60,369.75, 90,559.62 and 18,816.75

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Solution

The fourth proportional to 60,369.75, 90,559.62 and 18,816.75 is: 28,226.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,369.75 : 90,559.62 = 18,816.75 : x
  2. Step 2: Convert to fraction form
    60,369.75/90,559.62 = 18,816.75/x
  3. Step 3: Cross multiply
    60,369.75x = 90,559.62 × 18,816.75
  4. Step 4: Simplify right side
    60,369.75x = 1,704,037,729.64
  5. Step 5: Solve for x
    x = 1,704,037,729.64/60,369.75
  6. Step 6: Final answer
    x = 28,226.68

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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.