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Finding the Fourth Proportional to 65,692.80, 98,539.20 and 60,249.60

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Solution

The fourth proportional to 65,692.80, 98,539.20 and 60,249.60 is: 90,374.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,692.80 : 98,539.20 = 60,249.60 : x
  2. Step 2: Convert to fraction form
    65,692.80/98,539.20 = 60,249.60/x
  3. Step 3: Cross multiply
    65,692.80x = 98,539.20 × 60,249.60
  4. Step 4: Simplify right side
    65,692.80x = 5,936,947,384.32
  5. Step 5: Solve for x
    x = 5,936,947,384.32/65,692.80
  6. Step 6: Final answer
    x = 90,374.40

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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.