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Finding the Fourth Proportional to 60,596.89, 90,899.49 and 20,599.60

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Solution

The fourth proportional to 60,596.89, 90,899.49 and 20,599.60 is: 30,900.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,596.89 : 90,899.49 = 20,599.60 : x
  2. Step 2: Convert to fraction form
    60,596.89/90,899.49 = 20,599.60/x
  3. Step 3: Cross multiply
    60,596.89x = 90,899.49 × 20,599.60
  4. Step 4: Simplify right side
    60,596.89x = 1,872,492,855.46
  5. Step 5: Solve for x
    x = 1,872,492,855.46/60,596.89
  6. Step 6: Final answer
    x = 30,900.81

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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.