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Finding the Fourth Proportional to 52,599.20, 78,745.20 and 47,069.60

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Solution

The fourth proportional to 52,599.20, 78,745.20 and 47,069.60 is: 70,466.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,599.20 : 78,745.20 = 47,069.60 : x
  2. Step 2: Convert to fraction form
    52,599.20/78,745.20 = 47,069.60/x
  3. Step 3: Cross multiply
    52,599.20x = 78,745.20 × 47,069.60
  4. Step 4: Simplify right side
    52,599.20x = 3,706,505,065.92
  5. Step 5: Solve for x
    x = 3,706,505,065.92/52,599.20
  6. Step 6: Final answer
    x = 70,466.95

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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.