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Finding the Fourth Proportional to 64,375.80, 96,563.70 and 39,492.60

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Solution

The fourth proportional to 64,375.80, 96,563.70 and 39,492.60 is: 59,238.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,375.80 : 96,563.70 = 39,492.60 : x
  2. Step 2: Convert to fraction form
    64,375.80/96,563.70 = 39,492.60/x
  3. Step 3: Cross multiply
    64,375.80x = 96,563.70 × 39,492.60
  4. Step 4: Simplify right side
    64,375.80x = 3,813,551,578.62
  5. Step 5: Solve for x
    x = 3,813,551,578.62/64,375.80
  6. Step 6: Final answer
    x = 59,238.90

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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.