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Finding the Fourth Proportional to 60,485.40, 80,500.50 and 60,485.40

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Solution

The fourth proportional to 60,485.40, 80,500.50 and 60,485.40 is: 80,500.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,485.40 : 80,500.50 = 60,485.40 : x
  2. Step 2: Convert to fraction form
    60,485.40/80,500.50 = 60,485.40/x
  3. Step 3: Cross multiply
    60,485.40x = 80,500.50 × 60,485.40
  4. Step 4: Simplify right side
    60,485.40x = 4,869,104,942.70
  5. Step 5: Solve for x
    x = 4,869,104,942.70/60,485.40
  6. Step 6: Final answer
    x = 80,500.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.