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Finding the Fourth Proportional to 60,464.80, 90,697.20 and 39,469.60

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Solution

The fourth proportional to 60,464.80, 90,697.20 and 39,469.60 is: 59,204.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,464.80 : 90,697.20 = 39,469.60 : x
  2. Step 2: Convert to fraction form
    60,464.80/90,697.20 = 39,469.60/x
  3. Step 3: Cross multiply
    60,464.80x = 90,697.20 × 39,469.60
  4. Step 4: Simplify right side
    60,464.80x = 3,579,782,205.12
  5. Step 5: Solve for x
    x = 3,579,782,205.12/60,464.80
  6. Step 6: Final answer
    x = 59,204.40

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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.